Business phone systems · October 2026 Edition
Nextiva vs Microsoft Teams Phone
Five of fourteen models named Nextiva first on the direct prompt; zero named Microsoft Teams Phone. Nextiva was named by fourteen of the fourteen models and Microsoft Teams Phone by thirteen and Nextiva carries 49 labels and Microsoft Teams Phone 21, so the shares are not directly comparable.
Named in one category this edition.
Microsoft Teams Phone
accepted challengerNamed in one category this edition.
First-choice share14%3%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.
Negative rate6%10%Negative labels as a share of the product's labels, 0 to 100.
Rank in category#3#7A position in a field of 12; printed, not drawn.
Labels4921A count; the two differ.
The two percentage rows are drawn on one 0 to 100 track, Nextiva reading right to left. Rank and label count are printed, not drawn.Zoom Phone was named alongside these two in nine of the fourteen direct answers. RingCentral vs Nextiva · RingCentral vs Microsoft Teams Phone · Google Voice vs Nextiva
Share is the count of first choices across the direct, paraphrase, budget and scale prompts over all fourteen models, for a mid-market B2B company; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the business phone systems page.
By framing
How many of the fourteen models made each the first choice, per way of asking, and how many argued against it.
NextivaFirst choices, of fourteen modelsMicrosoft Teams PhoneDirect50
Paraphrase11
Comparative50
Budget-constrained10
Scale-constrained111 against Nextiva
Negative102 against Nextiva · 2 against Microsoft Teams Phone
Bars are first choices, 0 to 14 each sideModels that argued againstA model can name both, so the two sides of a row do not sum to fourteen.
Across every category in the October 2026 Edition, Nextiva and Microsoft Teams Phone were named in the same answer thirty-four times, of the 128 answers naming Nextiva and the 89 naming Microsoft Teams Phone. In those answers Microsoft Teams Phone took the first choice four times and Nextiva nine.
Every model, every framing
The eighty-four answers behind the chart above, one cell each: where Nextiva and Microsoft Teams Phone stood in it.
| Model | DirectMT | ParaphraseMT | ComparativeMT | Budget-constrainedMT | Scale-constrainedMT | NegativeMT |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | MT | | MT | ||
| GPT-5.4 mini | | MT | | |||
| Gemini 3.5 Flash | MT | MT | | | MT | |
| Perplexity Sonar | | | | |||
| Grok 4.1 Fast | | MT | | | | |
| Mistral Small | | | ||||
| DeepSeek V4 Flash | | MT | | | | |
| Llama 4 Maverick | | | ||||
| Qwen 3.7 Flash | MT | MT | | | MT | |
| Kimi K2 | | MT | | | MT | |
| GLM 4.7 FlashX | | MT | MT | | ||
| MiniMax M2.5 | | | ||||
| GPT-6 Luna | MT | |||||
| Muse Glimmer 30B | | | MT |
NextivaMT Microsoft Teams Phone first choice named as an alternative argued againstblank: not namedEach cell is one answer, Nextiva on the left and Microsoft Teams Phone on the right.The direct prompt
The plain question, one answer per model, grouped by where Nextiva and Microsoft Teams Phone stood in it.
Nextiva first, Microsoft Teams Phone not the choice
5 of 14 modelsMicrosoft Teams Phone was named in the answer but not as the choice, or not at all.Grok 4.1 FastNextiva alternatives: 8x8, Ooma Office, RingCentral, Zoom Phone
Llama 4 MaverickNextiva alternatives: JustCall, Vonage, Zoom Phone
GLM 4.7 FlashXNextiva, RingCentral RingEX alternatives: Dialpad Connect, GoTo Connect, Zoom Phone
MiniMax M2.5Nextiva, RingCentral RingEX alternatives: Intermedia Unite, Zoom Phone
Muse Glimmer 30BNextiva, RingCentral alternatives: 8x8, Dialpad, Zoom Phone
Neither was the first choice, one was named
8 of 14 modelsThe answer put something else first and named one of the two as an alternative.Claude Haiku 4.5RingCentral alternatives: 8x8, Dialpad, Nextiva
GPT-5.4 miniRingCentral, Zoom Phone alternatives: Dialpad, Nextiva, Webex Calling
Gemini 3.5 FlashDialpad, RingCentral alternatives: Aircall, Microsoft Teams Phone, Nextiva
Perplexity SonarRingCentral alternatives: 8x8, Dialpad, JustCall, Nextiva
Mistral SmallRingCentral alternatives: 8x8, Intermedia, Nextiva, Zoom Phone
DeepSeek V4 FlashRingCentral alternatives: 8x8, Aircall, Dialpad, Nextiva
Qwen 3.7 FlashRingCentral alternatives: Microsoft Teams Phone, Nextiva, Zoom Phone
Kimi K28x8, RingCentral RingEX alternatives: Dialpad, GoTo Connect, Nextiva
Neither was named
1 of 14 modelsThe answer made no first choice from these two in this category.GPT-6 LunaRingCentral RingEX alternatives: Dialpad, Teams Phone, Zoom Phone
Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment and they are never added together. The figures above are the mid-market standing, which is the one the category orders by.
Small business
Nextiva leads by thirty-one points.
Nextiva31%#1 of 11Microsoft Teams Phone0%#8 of 11
The full small business standing →Mid-marketThe figures above
Nextiva leads by ten points.
Nextiva14%#3 of 12Microsoft Teams Phone3%#7 of 12
The full mid-market standing →Enterprise
The order flips: Microsoft Teams Phone leads at enterprise.
Microsoft Teams Phone31%#2 of 10
Nextiva5%#4 of 10What the models said about Nextiva
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.
“Billing disputes are common—users report being charged for add-ons they never approved.” DeepSeek V4 Flash · negative prompt · soft negative
“notorious for aggressive and highly restrictive sales contracts” Gemini 3.5 Flash · negative prompt · soft negative
“Good all-in-one, but fewer integrations than RingCentral” DeepSeek V4 Flash · scale prompt · soft negative
“The best business phone system for a mid-market B2B company is likely to be Nextiva, which is considered the best for unified communications at mid-market scale.” Llama 4 Maverick · direct prompt · first choice
“Start with Nextiva if prioritizing ease, reliability, and B2B essentials... it's frequently rated highest for mid-sized businesses” Grok 4.1 Fast · direct prompt · first choice
“Prioritize highly rated alternatives: Nextiva (4.6-4.8/5 across platforms, A+ BBB), Ooma, or 8x8 for reliability and support.” Grok 4.1 Fast · negative prompt · first choice
What the models said about Microsoft Teams Phone
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Five of six in this category shown.
“Limitation: Poor fax capabilities—avoid if you need to send/receive faxes” Kimi K2 · negative prompt · hard negative
“The configuration complexity of platforms like Microsoft Teams Phone or RingCentral can be significant overhead for a 15-person professional services firm” Claude Haiku 4.5 · negative prompt · soft negative
“The Best All-Around Choice: Microsoft Teams ... Teams is almost invariably the correct choice.” Qwen 3.7 Flash · paraphrase prompt · first choice
“The default choice if you are deeply embedded in the Microsoft 365 ecosystem.” Gemini 3.5 Flash · scale prompt · first choice
“if your company is already committed to the Microsoft ecosystem, Microsoft Teams is a natural fit and more cost-effective” Claude Haiku 4.5 · paraphrase prompt · alternative
Also compared
RingCentral vs NextivaRingCentral vs Microsoft Teams PhoneGoogle Voice vs NextivaGoogle Voice vs Microsoft Teams PhoneNextiva vs RingCentral RingEXNextiva vs Zoom PhoneNextiva vs 8x8Nextiva vs DialpadRingCentral RingEX vs Microsoft Teams PhoneZoom Phone vs Microsoft Teams Phone8x8 vs Microsoft Teams PhoneMicrosoft Teams Phone vs DialpadAll twenty-eight head-to-head pages and the full business phones standing
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.