VoIP doesn't require a particular type of connection. It needs an IP connection that reaches your voice provider with room in each direction for the simultaneous calls you plan to support, on top of everything else the connection carries. One call takes about a tenth of a megabit each way, so fiber, cable, DSL, fixed wireless and mobile data can each be that connection when they have the room. The decisions left are how much upload is free when the office is busy, and whether your calls cross the public internet or stay on a network your voice provider runs.
\n","summary":"VoIP needs no particular connection type. It needs an IP connection to your voice provider with room in each direction for the simultaneous calls you plan to support, plus your other traffic. One G.711 call takes about 87 to 100 kbps each way. Also decide whether calls cross the public internet or the provider's network.","publishedAt":"2026-06-25T03:27:41.235","verifiedAt":"2026-07-17T00:00:00","editorialStatus":"APPROVED","lastReviewedAt":"2026-10-10T04:46:00.923","nextReviewDueAt":"2026-10-17T00:00:00","templateVersion":"v2","aliases":["What internet speed do I need for VoIP?","How much bandwidth does VoIP require?","Best internet connection for VoIP phone service","Does VoIP need fiber internet?","Can I use VoIP over DSL or cable?","Will VoIP work on satellite internet?","Minimum internet speed for VoIP calls","How much upload speed does VoIP need?","Is my internet good enough for VoIP?","Does VoIP work over 5G or fixed wireless?","Internet requirements for a business phone system","What upload and download speed for VoIP calls?"],"confidenceScore":90,"confidenceLabel":"High","canonicalUrl":null},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"contributorOrganizationProfile":null,"contributorPerson":null,"sections":[{"id":"8599adb8-e2ee-4795-a766-1218d45ef41f","sectionKey":"how_much_capacity_one_call_takes","sectionType":"markdown_section","heading":"How much capacity one call takes","introMarkdown":"Cisco's [bandwidth calculation](https://www.cisco.com/c/en/us/support/docs/voice/voice-quality/7934-bwidth-consume.html) for a call on the G.711 codec comes to 87.2 kbps. That figure assumes 20 milliseconds of audio in each packet, the IPv4, UDP and RTP headers, and Ethernet framing. A call sends and receives at the same time, and Cisco's design guidance applies the rate to each direction separately.\n\nTwilio's [SIP trunking documentation](https://www.twilio.com/docs/sip-trunking) plans on 100 kbps per simultaneous call for the same codec, and says the figure includes room for overhead. The two numbers don't disagree. Cisco's is a calculated rate for one stated setup, and Twilio's is a round allowance with margin built in. Other codecs and packet settings produce other rates, which we work through in [how much bandwidth a VoIP call uses](https://www.answerstack.io/q/how-much-bandwidth-does-a-voip-call-use). If your provider publishes a per-call figure, plan with that one.\n\nIn the table below we apply Twilio's 100 kbps allowance to upload and to download separately. That's our planning assumption, and it follows the way Cisco treats its own rate. The direction matters because many internet plans are sold with less upload than download. On a plan like that, upload is the figure to compare against your calls.","introHtml":"Cisco's bandwidth calculation for a call on the G.711 codec comes to 87.2 kbps. That figure assumes 20 milliseconds of audio in each packet, the IPv4, UDP and RTP headers, and Ethernet framing. A call sends and receives at the same time, and Cisco's design guidance applies the rate to each direction separately.
\nTwilio's SIP trunking documentation plans on 100 kbps per simultaneous call for the same codec, and says the figure includes room for overhead. The two numbers don't disagree. Cisco's is a calculated rate for one stated setup, and Twilio's is a round allowance with margin built in. Other codecs and packet settings produce other rates, which we work through in how much bandwidth a VoIP call uses. If your provider publishes a per-call figure, plan with that one.
\nIn the table below we apply Twilio's 100 kbps allowance to upload and to download separately. That's our planning assumption, and it follows the way Cisco treats its own rate. The direction matters because many internet plans are sold with less upload than download. On a plan like that, upload is the figure to compare against your calls.
\n","outroMarkdown":null,"outroHtml":null,"contentJson":{},"configJson":{},"noteMarkdown":null,"noteHtml":null,"sortOrder":10},{"id":"93bd6172-7a31-490e-a707-26304f4c1eb6","sectionKey":"capacity_for_simultaneous_calls","sectionType":"table_section","heading":"Capacity for simultaneous calls","introMarkdown":null,"introHtml":null,"outroMarkdown":null,"outroHtml":null,"contentJson":{"rows":[{"cells":["5","500 kbps","436 kbps"]},{"cells":["10","1 Mbps","872 kbps"]},{"cells":["25","2.5 Mbps","2.18 Mbps"]},{"cells":["50","5 Mbps","4.36 Mbps"]}],"columns":["Simultaneous calls","Each direction, at a 100 kbps allowance","Each direction, at Cisco's 87.2 kbps rate"]},"configJson":{},"noteMarkdown":null,"noteHtml":null,"sortOrder":20},{"id":"e6b3cde9-f193-4f26-9140-115d155a9cba","sectionKey":"plan_for_simultaneous_calls_and_for_the_other_traffic","sectionType":"markdown_section","heading":"Plan for simultaneous calls and for the other traffic","introMarkdown":"The capacity follows the number of calls you want to carry at the same time. The count of employees or phone numbers doesn't set it. Your call records are a starting point for that number. If they count only the calls that connected, a busy period in which callers were turned away will look smaller than the demand was.\n\nSuppose a 20-person office decides to allow for eight calls at once. At 100 kbps per call in each direction, voice needs 800 kbps of upload and 800 kbps of download. Suppose the plan has 10 Mbps of upload. Voice would take 8 percent of it.\n\nThe other inputs are whatever else uses the connection at the same moment. Microsoft's [network guidance for Teams](https://learn.microsoft.com/en-us/microsoftteams/prepare-network) recommends 1,500 kbps in each direction for a single one-to-one video call. In the example, one such call needs more upload than the eight voice calls combined. Add the office's video meetings, backups and file uploads to the voice figure, and compare the total with the upload the plan provides.\n\nYou can add a margin above that total. The margin is a planning choice, not a measured call requirement. If you're sizing a trunk for a phone system you run, we cover the call count in [how many simultaneous calls you need on a SIP trunk](https://www.answerstack.io/q/how-many-simultaneous-calls-do-i-need-or-get-on-a-sip-trunk).","introHtml":"The capacity follows the number of calls you want to carry at the same time. The count of employees or phone numbers doesn't set it. Your call records are a starting point for that number. If they count only the calls that connected, a busy period in which callers were turned away will look smaller than the demand was.
\nSuppose a 20-person office decides to allow for eight calls at once. At 100 kbps per call in each direction, voice needs 800 kbps of upload and 800 kbps of download. Suppose the plan has 10 Mbps of upload. Voice would take 8 percent of it.
\nThe other inputs are whatever else uses the connection at the same moment. Microsoft's network guidance for Teams recommends 1,500 kbps in each direction for a single one-to-one video call. In the example, one such call needs more upload than the eight voice calls combined. Add the office's video meetings, backups and file uploads to the voice figure, and compare the total with the upload the plan provides.
\nYou can add a margin above that total. The margin is a planning choice, not a measured call requirement. If you're sizing a trunk for a phone system you run, we cover the call count in how many simultaneous calls you need on a SIP trunk.
\n","outroMarkdown":null,"outroHtml":null,"contentJson":{},"configJson":{},"noteMarkdown":null,"noteHtml":null,"sortOrder":30},{"id":"ed0ee3e6-fa4e-48bc-b273-ab8d563b9c66","sectionKey":"public_internet_or_your_voice_provider_s_network","sectionType":"markdown_section","heading":"Public internet or your voice provider's network","introMarkdown":"The second decision is the route your calls take to the provider. Twilio's documentation lists two ways to connect a trunk: over the public internet, or over its private Interconnect service. Either one is an IP connection. They differ in who runs the network in the middle.\n\nAtlantech Online described the same choice from a carrier's side in a [July 2016 article](https://care.atlantech.net/news/posts/byob-vs-dedicated-connection-which-is-best-for-voip). In the first arrangement, which it calls bring your own bandwidth, a business buys internet from one company and phone service from another. Each call leaves on the internet connection and crosses the public internet to reach the phone provider's voice switch. In the second, the office's connection sits on the same network as the voice switch. Atlantech wrote that calls on its network go from the office to its switch without crossing the internet. It also wrote that it tags voice packets for priority, which it can do because it manages the equipment at both ends.\n\nPriority for voice works only on equipment that someone has configured to honor it. Microsoft's guidance for Teams says to set up quality of service on every segment of a managed network. A priority marking set in your office doesn't ensure that the other networks a call crosses will honor it. In the arrangement Atlantech described, the path from the office to the voice switch is under one company's management.\n\nAn ordinary internet connection from another company is still a workable choice. Atlantech's article says the bring-your-own arrangement can work well enough for a small company. Whether the provider's connection suits your office depends on the quote, on what the service covers and on what a phone outage would cost you. For a phone system you run, the same decision is covered in what kind of internet connection you need for SIP trunking.","introHtml":"The second decision is the route your calls take to the provider. Twilio's documentation lists two ways to connect a trunk: over the public internet, or over its private Interconnect service. Either one is an IP connection. They differ in who runs the network in the middle.
\nAtlantech Online described the same choice from a carrier's side in a July 2016 article. In the first arrangement, which it calls bring your own bandwidth, a business buys internet from one company and phone service from another. Each call leaves on the internet connection and crosses the public internet to reach the phone provider's voice switch. In the second, the office's connection sits on the same network as the voice switch. Atlantech wrote that calls on its network go from the office to its switch without crossing the internet. It also wrote that it tags voice packets for priority, which it can do because it manages the equipment at both ends.
\nPriority for voice works only on equipment that someone has configured to honor it. Microsoft's guidance for Teams says to set up quality of service on every segment of a managed network. A priority marking set in your office doesn't ensure that the other networks a call crosses will honor it. In the arrangement Atlantech described, the path from the office to the voice switch is under one company's management.
\nAn ordinary internet connection from another company is still a workable choice. Atlantech's article says the bring-your-own arrangement can work well enough for a small company. Whether the provider's connection suits your office depends on the quote, on what the service covers and on what a phone outage would cost you. For a phone system you run, the same decision is covered in what kind of internet connection you need for SIP trunking.
\n","outroMarkdown":null,"outroHtml":null,"contentJson":{},"configJson":{},"noteMarkdown":null,"noteHtml":null,"sortOrder":40},{"id":"a2b81750-b19f-4c17-8bfe-134005967a4f","sectionKey":"the_part_of_the_path_inside_your_building","sectionType":"markdown_section","heading":"The part of the path inside your building","introMarkdown":"The connection ends at your router, and the call still has to cross the office network to reach it. Microsoft's guidance says Wi-Fi networks aren't necessarily designed or configured for real-time media. It recommends planning for it, with priority for media traffic and attention to the wireless band and where the access points sit.\n\nThat's guidance for Teams, and what it asks for is planning. Wi-Fi isn't ruled out. A desk phone on a network cable doesn't depend on the wireless network. Calls from a laptop on Wi-Fi depend on how the wireless network is set up, so try calls from the places people work while the office is busy.","introHtml":"The connection ends at your router, and the call still has to cross the office network to reach it. Microsoft's guidance says Wi-Fi networks aren't necessarily designed or configured for real-time media. It recommends planning for it, with priority for media traffic and attention to the wireless band and where the access points sit.
\nThat's guidance for Teams, and what it asks for is planning. Wi-Fi isn't ruled out. A desk phone on a network cable doesn't depend on the wireless network. Calls from a laptop on Wi-Fi depend on how the wireless network is set up, so try calls from the places people work while the office is busy.
\n","outroMarkdown":null,"outroHtml":null,"contentJson":{},"configJson":{},"noteMarkdown":null,"noteHtml":null,"sortOrder":50},{"id":"43ce4f0c-3413-44b2-ba70-9f50fc25fe1c","sectionKey":"what_a_speed_test_doesn_t_show","sectionType":"markdown_section","heading":"What a speed test doesn't show","introMarkdown":"The headline figure on a speed test is throughput, which is how much data the connection moved during the test. A call also needs its packets to arrive steadily. The [specification for RTP](https://www.rfc-editor.org/rfc/rfc3550.html), the protocol that carries call audio, says RTP doesn't guarantee delivery or timely arrival and relies on the network underneath for both. So a connection with capacity to spare can still deliver voice packets late when it's busy. A receiving device can absorb a little lateness. Past that point, the listener can hear choppy or clipped speech.\n\nSome speed tests also report jitter and packet loss, and those figures say more about calls than the throughput number does. The better test is a trial of real calls on the connection during a busy hour, before the phone numbers move. If the trial calls break up, the symptoms help narrow down where to look, and we go through them in [common UCaaS call quality problems](https://www.answerstack.io/q/what-are-common-ucaas-call-quality-problems).\n\nPeople who work from home add one more thing to plan. Each home connection is a separate requirement, so a strong connection at the office says nothing about theirs.","introHtml":"The headline figure on a speed test is throughput, which is how much data the connection moved during the test. A call also needs its packets to arrive steadily. The specification for RTP, the protocol that carries call audio, says RTP doesn't guarantee delivery or timely arrival and relies on the network underneath for both. So a connection with capacity to spare can still deliver voice packets late when it's busy. A receiving device can absorb a little lateness. Past that point, the listener can hear choppy or clipped speech.
\nSome speed tests also report jitter and packet loss, and those figures say more about calls than the throughput number does. The better test is a trial of real calls on the connection during a busy hour, before the phone numbers move. If the trial calls break up, the symptoms help narrow down where to look, and we go through them in common UCaaS call quality problems.
\nPeople who work from home add one more thing to plan. Each home connection is a separate requirement, so a strong connection at the office says nothing about theirs.
\n","outroMarkdown":null,"outroHtml":null,"contentJson":{},"configJson":{},"noteMarkdown":null,"noteHtml":null,"sortOrder":60}],"citations":[{"title":"Do You Need Fast Internet For VoIP?","url":"https://www.ooma.com/blog/home-phone/do-you-need-fast-internet-for-voip/","excerpt":"For VoIP service, both upload and download speeds are important because speaking in real-time requires that you're both sending and receiving packets of audio data.","quoteText":null,"sourceRole":"INDEPENDENT","verifiedAt":"2026-07-17T00:00:00","supportsText":"Both upload and download speeds matter for VoIP; VoIP uses under 0.5 Mbps download; Ooma recommends at least 0.384 Mbps upstream and downstream; connection-type speed ranges (DSL 5 to 35 Mbps, cable 10 to 500 Mbps, mobile average 41 Mbps, fiber 250 to 1,000 Mbps) are all adequate for voice","domain":"ooma.com","publisherName":"Ooma"},{"title":"VoIP Bandwidth Requirements: How Much Is Needed?","url":"https://www.onsip.com/voip-resources/voip-fundamentals/voip-bandwidth-requirements","excerpt":"Take the peak number of calls and multiply that by 0.2 Mbps and you'll have an idea of the bandwidth you need.","quoteText":null,"sourceRole":"INDEPENDENT","verifiedAt":"2026-07-17T00:00:00","supportsText":"Sizing method: multiply the peak number of concurrent calls by roughly 0.1 to 0.2 Mbps to estimate the bandwidth voice needs; use peak rather than average call volume","domain":"onsip.com","publisherName":"OnSIP"},{"title":"G.711 vs G.729: VoIP Codec Comparison","url":"https://telcobridges.com/learning/sip-trunking/g711-vs-g729/","excerpt":"G.711: around 85 to 87 kbps per direction. G.729: around 31 kbps per direction.","quoteText":null,"sourceRole":"INDEPENDENT","verifiedAt":"2026-07-17T00:00:00","supportsText":"Per-call bandwidth including IP, UDP, RTP, and Ethernet overhead: G.711 about 85 to 87 kbps per direction, G.729 about 31 kbps per direction, at roughly 20 ms packetization","domain":"telcobridges.com","publisherName":"TelcoBridges"},{"title":"Prepare your organization's network for Teams","url":"https://learn.microsoft.com/en-us/microsoftteams/prepare-network","excerpt":"That said, when bandwidth is insufficient, Teams prioritizes audio quality over video quality.","quoteText":null,"sourceRole":"PRIMARY","verifiedAt":"2026-07-17T00:00:00","supportsText":"Teams audio bitrate per stream ranges from 10 kbps minimum to 58 kbps recommended to 76 kbps best performance, up and down; Wi-Fi is not built for real-time media and the 5 GHz band is better; QoS packet prioritization improves and protects call quality; VPN should be bypassed for real-time media","domain":"learn.microsoft.com","publisherName":"Microsoft Learn"},{"title":"Quality of Service (QoS) in VoIP implementations","url":"https://www.voip-info.org/qos/","excerpt":"ITU-T G.114 recommends a maximum of a 150 ms one-way latency. Even 1% packet loss can significantly degrade a VOIP call using a G.711 codec.","quoteText":null,"sourceRole":"INDEPENDENT","verifiedAt":"2026-07-17T00:00:00","supportsText":"ITU-T G.114 recommends a maximum of 150 ms one-way latency; jitter buffers are effective on delay variation under about 100 ms; even 1 percent packet loss can significantly degrade a VoIP call on the G.711 codec","domain":"voip-info.org","publisherName":"VoIP-Info"},{"title":"ITU-T G.114: One-way transmission time","url":"https://www.itu.int/rec/T-REC-G.114","excerpt":"G.114 (05/03) One-way transmission time. Status: In force.","quoteText":null,"sourceRole":"PRIMARY","verifiedAt":"2026-07-17T00:00:00","supportsText":"The ITU-T standard that defines the one-way transmission time budget used as the latency target for real-time voice; current recommendation G.114 (05/03), status In force","domain":"itu.int","publisherName":"International Telecommunication Union (ITU-T)"},{"title":"Network Jitter: How It Affects VoIP Phone Calls and How to Fix It","url":"https://www.nextiva.com/blog/network-jitter.html","excerpt":"Cisco recommends that jitter on voice traffic should not exceed 30 milliseconds.","quoteText":null,"sourceRole":"INDEPENDENT","verifiedAt":"2026-07-17T00:00:00","supportsText":"Jitter on voice traffic should not exceed 30 ms for good quality; Wi-Fi interference and network congestion are leading causes of jitter; misconfigured QoS contributes to poor call quality","domain":"nextiva.com","publisherName":"Nextiva"},{"title":"Internet Connection Types Explained: Fiber, Cable, DSL and More","url":"https://broadbandnow.com/guides/internet-connection-types","excerpt":"Fiber offers symmetrical download and upload speeds.","quoteText":null,"sourceRole":"INDEPENDENT","verifiedAt":"2026-07-17T00:00:00","supportsText":"Fiber offers symmetrical upload and download up to about 10 Gbps; cable up to 2 Gbps with smaller upload; DSL up to 100 Mbps; fixed wireless up to 400 Mbps; satellite speeds by provider (Starlink 400 Mbps, Viasat 150 Mbps, Hughesnet 100 Mbps)","domain":"broadbandnow.com","publisherName":"BroadbandNow"},{"title":"Satellite Internet Speeds and Latency: Starlink vs GEO","url":"https://orbitalradar.com/satellite-internet/speeds-and-latency","excerpt":"GEO satellite internet is poor for video calls, the 600+ ms delay causes participants to constantly talk over each other.","quoteText":null,"sourceRole":"INDEPENDENT","verifiedAt":"2026-07-17T00:00:00","supportsText":"Low-Earth-orbit Starlink delivers round-trip latency of about 25 to 60 ms, low enough for natural calls; geostationary satellite adds 600 to 700 ms of round-trip delay, too much for real-time voice or video","domain":"orbitalradar.com","publisherName":"Orbital Radar"},{"title":"Fiber vs. Cable Internet: 6 Reasons Fiber May Be the Best for Your Business","url":"https://www.atlantech.net/blog/fiber-optic-internet-vs-cable","excerpt":"For organizations considering shifting their voice communications to Voice-over-IP (VoIP), and using video, having your bandwidth delivered over fiber can be an indispensable asset.","quoteText":null,"sourceRole":"SUPPORTING","verifiedAt":"2026-07-17T00:00:00","supportsText":"Fiber's symmetrical upload and download speeds benefit voice-over-IP and real-time collaboration; corroborated by [8]","domain":"atlantech.net","publisherName":"Atlantech Online"}],"revisions":[{"revisedAt":"2026-07-18T03:27:41.235+00:00","versionLabel":"Originally published","note":"","reviewedBy":null}],"relatedAnswers":[{"id":"a96e1365-05b5-48e7-94dd-91a34d711268","slug":"does-voip-require-an-internet-connection","question":"Does VoIP require an internet connection?","publishedAt":"2026-07-03T03:26:50.582","confidenceScore":90,"confidenceLabel":"High","industry":{"id":"ff619d7c-d7d7-485e-a05a-53fba07f33ed","slug":"telecommunications","label":"Telecommunications","description":"Business voice, fiber, UCaaS, and network services"},"topic":{"slug":"voip","label":"VoIP","description":"Voice over IP for business: how it works, what it requires, and how it compares to traditional phone service.","schemaKind":null},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"snippet":"Not always. VoIP needs an IP network path between the phone and the system that handles its calls. That path can be the public internet, a private connection to the provider or an office network with the phone system on site, depending on how the service is set up.","url":"/q/does-voip-require-an-internet-connection"},{"id":"f3429824-6f34-416e-9422-272837f4e0c9","slug":"how-much-bandwidth-does-a-voip-call-use","question":"How much bandwidth does a VoIP call use?","publishedAt":"2026-05-09T03:24:27.71","confidenceScore":84,"confidenceLabel":"High","industry":{"id":"ff619d7c-d7d7-485e-a05a-53fba07f33ed","slug":"telecommunications","label":"Telecommunications","description":"Business voice, fiber, UCaaS, and network services"},"topic":{"slug":"voip","label":"VoIP","description":"Voice over IP for business: how it works, what it requires, and how it compares to traditional phone service.","schemaKind":null},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"snippet":"Cisco's calculation puts a G.711 VoIP call at 87.2 kbps in each direction and a G.729 call at 31.2 kbps, counting IP, UDP, RTP and Ethernet headers with 20 milliseconds of speech per packet. The figure changes with codec, packet size and link type. Multiply it by simultaneous calls and compare it with upload and download separately.","url":"/q/how-much-bandwidth-does-a-voip-call-use"},{"id":"2bc2d203-d1bf-4685-91a1-cd586dddf234","slug":"do-i-need-a-phone-line-for-voip","question":"Do I need a phone line for VoIP?","publishedAt":"2026-05-02T03:33:04.199","confidenceScore":92,"confidenceLabel":"High","industry":{"id":"ff619d7c-d7d7-485e-a05a-53fba07f33ed","slug":"telecommunications","label":"Telecommunications","description":"Business voice, fiber, UCaaS, and network services"},"topic":{"slug":"voip","label":"VoIP","description":"Voice over IP for business: how it works, what it requires, and how it compares to traditional phone service.","schemaKind":null},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"snippet":"No. VoIP needs a data connection and a compatible device or app, not a traditional analog phone line. Calling ordinary phone numbers also takes a service connected to the public telephone network. Check your internet, number and connected devices before cancelling the old line.","url":"/q/do-i-need-a-phone-line-for-voip"},{"id":"09cc8e4a-38e6-4d0f-af1c-342b8e394204","slug":"what-is-voip","question":"What is VoIP?","publishedAt":"2026-04-23T03:09:30.888","confidenceScore":92,"confidenceLabel":"High","industry":{"id":"ff619d7c-d7d7-485e-a05a-53fba07f33ed","slug":"telecommunications","label":"Telecommunications","description":"Business voice, fiber, UCaaS, and network services"},"topic":{"slug":"voip","label":"VoIP","description":"Voice over IP for business: how it works, what it requires, and how it compares to traditional phone service.","schemaKind":null},"contributor":{"id":"ec39deab-44fe-48d8-9029-fefe993ab85a","slug":"answer-stack","displayName":"AnswerStack","websiteUrl":null},"snippet":"VoIP, voice over Internet Protocol, is the group of technologies that carries voice calls as data over a network using internet protocols. It describes how a call travels, not a product. It is sold in several forms, including hosted phone systems, SIP trunks and calling inside collaboration apps.","url":"/q/what-is-voip"}],"contributorStats":{"verifiedAnswers":149,"openDisputes":0},"schemaJson":{"@context":"https://schema.org","@type":"Question","name":"What type of internet connection do I need for VoIP?","text":"What type of internet connection do I need for VoIP?","url":"https://www.answerstack.io/q/what-type-of-internet-connection-do-i-need-for-voip","answerCount":1,"datePublished":"2026-06-25T03:27:41.235","about":[{"@type":"Thing","name":"VoIP"},{"@type":"Thing","name":"Telecommunications"}],"acceptedAnswer":{"@type":"Answer","text":"VoIP doesn't require a particular type of connection. It needs an IP connection that reaches your voice provider with room in each direction for the simultaneous calls you plan to support, on top of everything else the connection carries. One call takes about a tenth of a megabit each way, so fiber, cable, DSL, fixed wireless and mobile data can each be that connection when they have the room. The decisions left are how much upload is free when the office is busy, and whether your calls cross the public internet or stay on a network your voice provider runs.","url":"https://www.answerstack.io/q/what-type-of-internet-connection-do-i-need-for-voip","upvoteCount":0,"datePublished":"2026-06-25T03:27:41.235","dateModified":"2026-07-17T00:00:00","citation":[{"@type":"CreativeWork","name":"Do You Need Fast Internet For VoIP?","url":"https://www.ooma.com/blog/home-phone/do-you-need-fast-internet-for-voip/"},{"@type":"CreativeWork","name":"VoIP Bandwidth Requirements: How Much Is Needed?","url":"https://www.onsip.com/voip-resources/voip-fundamentals/voip-bandwidth-requirements"},{"@type":"CreativeWork","name":"G.711 vs G.729: VoIP Codec Comparison","url":"https://telcobridges.com/learning/sip-trunking/g711-vs-g729/"},{"@type":"CreativeWork","name":"Prepare your organization's network for Teams","url":"https://learn.microsoft.com/en-us/microsoftteams/prepare-network"},{"@type":"CreativeWork","name":"Quality of Service (QoS) in VoIP implementations","url":"https://www.voip-info.org/qos/"},{"@type":"CreativeWork","name":"ITU-T G.114: One-way transmission time","url":"https://www.itu.int/rec/T-REC-G.114"},{"@type":"CreativeWork","name":"Network Jitter: How It Affects VoIP Phone Calls and How to Fix It","url":"https://www.nextiva.com/blog/network-jitter.html"},{"@type":"CreativeWork","name":"Internet Connection Types Explained: Fiber, Cable, DSL and More","url":"https://broadbandnow.com/guides/internet-connection-types"},{"@type":"CreativeWork","name":"Satellite Internet Speeds and Latency: Starlink vs GEO","url":"https://orbitalradar.com/satellite-internet/speeds-and-latency"},{"@type":"CreativeWork","name":"Fiber vs. Cable Internet: 6 Reasons Fiber May Be the Best for Your Business","url":"https://www.atlantech.net/blog/fiber-optic-internet-vs-cable"}]}}}