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Business phone systems · October 2026 Edition

8x8 vs Microsoft Teams Phone

One of fourteen models named 8x8 first on the direct prompt; zero named Microsoft Teams Phone. 8x8 was named by thirteen of the fourteen models and Microsoft Teams Phone by thirteen and 8x8 carries 37 labels and Microsoft Teams Phone 21, so the shares are not directly comparable.

8x8

accepted challenger

Named in two categories this edition.

Microsoft Teams Phone

accepted challenger

Named in one category this edition.

First-choice share3%3%Of first choices across the direct, paraphrase, budget and scale prompts, 0 to 100.

Negative rate8%10%Negative labels as a share of the product's labels, 0 to 100.

Rank in category#6#7A position in a field of 12; printed, not drawn.

Labels3721A count; the two differ.

The two percentage rows are drawn on one 0 to 100 track, 8x8 reading right to left. Rank and label count are printed, not drawn.Nextiva was named alongside these two in thirteen of the fourteen direct answers. RingCentral vs 8x8 · RingCentral vs Microsoft Teams Phone · Google Voice vs 8x8

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.

8x8First choices, of fourteen modelsMicrosoft Teams Phone

Direct10

Paraphrase01

Comparative00

Budget-constrained00

Scale-constrained11

Negative003 against 8x8 · 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, 8x8 and Microsoft Teams Phone were named in the same answer forty-two times, of the 88 answers naming 8x8 and the 89 naming Microsoft Teams Phone. In those answers Microsoft Teams Phone took the first choice twelve times and 8x8 one.

Every model, every framing

The eighty-four answers behind the chart above, one cell each: where 8x8 and Microsoft Teams Phone stood in it.

Model	DirectMT	ParaphraseMT	ComparativeMT	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

8x8MT Microsoft Teams Phone

first choice

named as an alternative

argued againstblank: not namedEach cell is one answer, 8x8 on the left and Microsoft Teams Phone on the right.

The direct prompt

The plain question, one answer per model, grouped by where 8x8 and Microsoft Teams Phone stood in it.

8x8 first, Microsoft Teams Phone not the choice

1 of 14 modelsMicrosoft Teams Phone was named in the answer but not as the choice, or not at all.

Kimi K28x8, RingCentral RingEX alternatives: Dialpad, GoTo Connect, Nextiva

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

Gemini 3.5 FlashDialpad, RingCentral alternatives: Aircall, Microsoft Teams Phone, Nextiva

Perplexity SonarRingCentral alternatives: 8x8, Dialpad, JustCall, Nextiva

Grok 4.1 FastNextiva alternatives: 8x8, Ooma Office, RingCentral, Zoom Phone

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

Muse Glimmer 30BNextiva, RingCentral alternatives: 8x8, Dialpad, Zoom Phone

Neither was named

5 of 14 modelsThe answer made no first choice from these two in this category.

GPT-5.4 miniRingCentral, Zoom Phone alternatives: Dialpad, Nextiva, Webex Calling

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

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

Level: the same share of first choices.

8x8#11 of 11

Microsoft Teams Phone#8 of 11

The full small business standing →

Mid-marketThe figures above

Level: the same share of first choices.

8x8#6 of 12

Microsoft Teams Phone#7 of 12

The full mid-market standing →

Enterprise

Microsoft Teams Phone leads by twenty-nine points.

Microsoft Teams Phone#2 of 10

8x8#5 of 10

The full enterprise standing →

What the models said about 8x8

Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of seven in this category shown.

“While 8x8 has strengths, it has significant red flags... budget-conscious growing teams may find pricing unpredictable.” Qwen 3.7 Flash · negative prompt · soft negative

“notorious for aggressive and highly restrictive sales contracts” Gemini 3.5 Flash · negative prompt · soft negative

“Support is consistently rated 1–2 stars on third-party sites.” DeepSeek V4 Flash · negative prompt · soft negative

“RingCentral MVP / 8x8 X Series: Full UCaaS, strong PBX features, good mid-market fit.” Kimi K2 · scale prompt · first choice

“I'd suggest RingCentral RingEX or 8x8 as the top choices” Kimi K2 · direct prompt · first choice

“If you're running both sales and support operations, 8x8 is worth a serious look given its native contact center capabilities.” DeepSeek V4 Flash · paraphrase prompt · alternative

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 8x8 RingCentral vs Microsoft Teams Phone Google Voice vs 8x8 Google Voice vs Microsoft Teams Phone Nextiva vs 8x8 Nextiva vs Microsoft Teams Phone RingCentral RingEX vs 8x8 RingCentral RingEX vs Microsoft Teams Phone Zoom Phone vs 8x8 Zoom Phone vs Microsoft Teams Phone 8x8 vs Dialpad Microsoft Teams Phone vs Dialpad All 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.