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
Upgrade Skype for Business Online (3PIP) phones to Microsoft Teams using Teams SIP Gateway
UPDATED September 26, 2022: Microsoft retired Skype for Business Online (SfBO) in July 2021. To protect the investment that you have made in Skype for Business Online phones (aka 3PIP phones), we extended support until 31st July 2023 to give you enough time to upgrade. Additionally, to aid you with that upgrade we now offer a solution through the Teams SIP Gateway to enable these devices to securely connect and function as Microsoft Teams endpoints. We encourage you to make necessary updates as soon as possible because Skype for Business Online will be permanently turned off in July 2023 as previously communicated.
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!