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  1. InteropPbxs

    SIP Trunk gets 503 Service Unavailable

    I am routing a call using SIP into the Mitel. I am getting a 503 Service Unavailable response. In this case the RequestURI and To is a user registered on a 5212 phone. The From is an unknown user and is not data filled on Mitel. I verified that I am hitting the Sip Peer because I can toggle...
  2. InteropPbxs

    Forking MWI Notifications

    Yes I have tried the phone call to an extension/external number. The problem with this approach is that you only get notified when a voice mail message is deposited. When the messages are cleared there is no notification. So if we turn a light on a second device there is no notification sent so...
  3. InteropPbxs

    Forking MWI Notifications

    Is there a way to have the Mitel 3300 Rel 8 fork MWI notifications to multiple endpoints at the same time. For example a user has a phone such as the 5212/5330/5340 either configured as IP or SIP. The user has a second device that will ring for incoming calls. This device could be setup as a...

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