While Microsoft Teams phone devices provide the richest and most complete Teams experience, we understand that there are many customers with existing investments in legacy devices. To help customers leverage their existing telephony hardware as they move to Teams Phone, we are excited to announce that SIP Gateway, a solution that enables core Teams calling functionality on compatible SIP phone models from Cisco, Poly, Yealink and AudioCodes is now generally available.
Cisco IP Phones with MPP firmware (6821, 7800 series, 8800 series), Polycom SIP phones (VVX series 100, 200, 300, 400, 500, 600 etc.), Yealink (T20 series, T30 series, T40 series, T50 series), AudioCodes 400 HD series.
Currently, SIP Gateway supports the following core Teams calling functionality
Inbound and outbound calls
Meeting dial-in and dial-out
Device-based “do not disturb”
Voicemail with message waiting indicator
There is no additional cost for organizations to use SIP Gateway, and any users meeting the following requirements can use SIP Gateway
Users must be licensed for Teams Phone (via any Office 365 E5, Microsoft 365 license that includes Teams Phone, or as a standalone license)
PSTN enablement (i.e., phone number assigned) via a Microsoft Teams Calling Plan, Direct Routing, or Operator Connect
Teams support for third-party IP (3PIP) phones will continue beyond 2023
Customers who use Skype for Business phones to sign into Teams via 3PIP Gateway will be able to do so beyond 2023. However, no new investments are planned for 3PIP Gateway, and 3PIP phones will be enabled via SIP Gateway after 3PIP Gateway end of life. No additional setup is needed for core functionality such as authentication, calling, calendar and presence, and meetings, using 3PIP phones.
Upgrade to Teams phone devices
While SIP Gateway and 3PIP Gateway provide valuable flexibility for organizations with SIP phone investments, Teams phone devices provide the most complete Teams experience. Upgrade to Teams phone devices today!