Microsoft Teams Phone alternatives
As of 5 November 2026, 23 business telephony are named by companies instead of Microsoft Teams Phone: Avaya by 268 companies, RingCentral by 264, Cisco Unified Communications Manager by 262.
As of 5 November 2026 · refreshed daily · counts move as websites, DNS and career sites are re-read.
- Microsoft Teams Phone, companies in postings
- 173
- Most used alternative
- Avaya · 268
- Fastest hiring, 90 days
- Avaya
- Alternatives ranked
- 23
- Catalogue
- T-1.0.1-prov
business telephony companies choose instead of Microsoft Teams Phone
Companies naming each tool in their own postings, and postings in the last 90 days. Bars are relative to the category leader.
| # | Alternative | Companies | companies | vs Microsoft Teams Phone | postings, 90 d | Compare |
|---|---|---|---|---|---|---|
| 1 | AvayaAvaya | 268 | 155% | 794 | Microsoft Teams Phone vs Avaya → | |
| 2 | RingCentralRingCentral | 264 | 153% | 557 | Microsoft Teams Phone vs RingCentral → | |
| 3 | 262 | 151% | 553 | Microsoft Teams Phone vs Cisco Unified Communications Manager → | ||
| 4 | AircallAircall | 170 | 98% | 394 | Microsoft Teams Phone vs Aircall → | |
| 5 | AsteriskSangoma | 138 | 80% | 203 | Microsoft Teams Phone vs Asterisk → | |
| 6 | 3CX3CX | 105 | 61% | 165 | soon | |
| 7 | DialpadDialpad | 104 | 60% | 151 | soon | |
| 8 | MitelMitel | 80 | 46% | 133 | soon | |
| 9 | 78 | 45% | 200 | soon | ||
| 10 | FreeSWITCHSignalWire | 76 | 44% | 164 | soon | |
| 11 | Microsoft Teams Direct RoutingMicrosoft | 65 | 38% | 129 | soon | |
| 12 | Ribbon CommunicationsRibbon Communications | 63 | 36% | 152 | soon | |
| 13 | 55 | 32% | 118 | soon | ||
| 14 | KamailioKamailio | 55 | 32% | 133 | soon | |
| 15 | VoceraStryker | 53 | 31% | 210 | soon | |
| 16 | AudioCodesAudioCodes | 52 | 30% | 110 | soon | |
| 17 | Zoom PhoneZoom | 44 | 25% | 194 | soon | |
| 18 | RightFaxOpenText | 35 | 20% | 93 | soon | |
| 19 | OpenSIPSOpenSIPS Project | 30 | 17% | 26 | soon | |
| 20 | AscomAscom | 28 | 16% | 60 | soon | |
| 21 | ShoreTelMitel | 24 | 14% | 28 | soon | |
| 22 | 8x88x8 | 15 | 9% | 40 | soon | |
| 23 | SonusRibbon Communications | 11 | 6% | 44 | soon |
Filter on any of them, or on Microsoft Teams Phone users who also name an alternative, and open the person who owns the stack.
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23 business telephony are named by companies instead of Microsoft Teams Phone: Avaya by 268 companies, RingCentral by 264, Cisco Unified Communications Manager by 262, measured from their own job postings. (Breaknorm, 5 November 2026, https://breaknorm.co/tools/microsoft-teams-phone/alternatives)
Read from the source, not self-reported
Every number on this page can be traced to a page we crawled or a posting we read. Full methodology →
- RankingCompanies whose own postings name the tool as the team's system, from the Breaknorm technology catalogue T-1.0.1-prov. Editions are folded into their parent product.
- 90-day postingsOpen postings first seen or posted in the last 90 days that name the tool.
- Not includedRatings, prices, feature claims, sponsored positions.
Microsoft Teams Phone alternatives: questions
What is the most used alternative to Microsoft Teams Phone?
Avaya: 268 companies name it in their own job postings, against 173 for Microsoft Teams Phone.
How is this list ranked?
By the number of companies whose own postings name the tool as the team's system (Breaknorm technology catalogue T-1.0.1-prov), then by postings in the last 90 days. No ratings, no vendor input, no sponsored positions.
Does this say which is better?
No. It says who uses what, by company size, industry and country, so you can see which tools companies like yours choose. For features and prices, read the vendors.
Can I get the companies on any of these?
Yes: click the tool, see the first 20 companies, and sign up for the full list with verified e-mails. Counting is free.
Get these companies your way
The same data as a search, over MCP and the API, as bulk files, or pushed to you as it changes.
Every company on Microsoft Teams Phone
or on what replaces it
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