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How to Enable Microsoft Teams Calling with SIP Gateway?

Microsoft Teams has emerged as one of the most versatile unified communications as a service (UCaaS) solutions in the last few years. It supports a wide range of phone devices that are specifically designed for Microsoft Teams to deliver the best experience. However, many organizations have invested heavily in telephony hardware, and prefer to utilize their existing infrastructure even as they upgrade to cloud solutions.

Microsoft recently announced the SIP Gateway, a solution with which such businesses can take advantage of the core Teams calling functionality with existing Session Initiation Protocol (SIP) phones that are compatible with Teams. In this article, we will explore how businesses, we will explore how businesses can enable Microsoft Teams with SIP Gateway.

What Are the Teams Calling Functionality Supported by SIP Gateway?

With Microsoft SIP Gateway, phones manufactured by companies such as Cisco, Polycom, Yealink, and AudioCodes can make and receive calls, dial in and out to meetings, and support voicemail indicators, and device-based do not disturb mode. Here are some of the other Microsoft Teams features that are supported by the SIP Gateway.

  • Resume, hold, and transfer calls between phones and other devices.
  • Integrate SIP phones with the Microsoft Teams routing policies.
  • Manage devices using the Teams admin center.
  • Use voicemail capabilities with message waiting indicators.
  • Enhance basic phone capabilities with email, web, live chat, and other features via IP networks.

How to Enable And Manage SIP Gateway?

Using the SIP Gateway does not involve additional costs for organizations. However, users need the Teams Phone license, which is available either as a standalone or as a part of an Office 365 E5 or Microsoft 365 license. Additionally, a phone number should be assigned using Microsoft Teams Calling Plan, Direct Routing, or Operator Connect. Finally, Common Areal Phone licenses are required if common area devices are used. Follow the steps below to set up the Microsoft Teams SIP Gateway.

  • Ensure that the SIP devices can be used for calls calling policy is on in Teams admin center.
  • Navigate to Teams devices>SIP devices for managing SIP phones that are connected to Teams.
  • Reset the settings of the SIP phones to their factory settings, and change the settings to point the devices to the SIP Gateway provisioning server.
  • Open the firewalls to allow traffic from Microsoft 365 and Teams, and make sure that the SIP devices themselves are not behind a proxy.
  • Open the UDP ports in the range of 49152 to 53247, and TCP port 5061 from 52.112.0.0/14 to 52.120.0.0/14.
  • The newly onboarded SIP devices should be visible under SIP devices in the Teams admin center.

Apps4Rent Can Help with Microsoft Teams Deployment And Customization

Microsoft Teams SIP Gateway provides organizations unparalleled flexibility to take advantage of their existing investments in SIP devices. It eliminates the need for additional setup for using features, such as authentication, calling, calendar and presence, and meetings while using Microsoft Teams third-party SIP phones.

As a Microsoft Gold Partner for Collaboration and Content, Apps4Rent can help businesses and enterprises procure appropriate licenses with Microsoft 365, and customize Teams based on their unique requirements. We can also help with hosted open-source solutions, such as Issabel IP PBX. Call, chat or email our cloud PBX experts, available 24/7 for assistance.

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