M1 Messenger is a free messenger supporting SIP protocol

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Use M1 Messenger instead of desktop IP phones.

Works with any SIP based PBX.

A push mode to save battery life.

SIP supporting advantages:


Easy routing audio and video calls from M1 Messenger's users to any Contact Center or IP PBX


You can make and receive calls to M1 Messenger using any IP phone or VOIP gateway


You can call to any M1 Messenger’s user from web page using WebRTC service


You can easily route any virtual phone number (DID) to  M1 Messenger  using SIP URI functionality