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  • Posted on: March 5, 2021
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GT909 Test: Triggered by a SIP NOTIFY message

The BT device supports server-initiated GR-909 tests triggered by an incoming SIP NOTIFY Message with “Event: gr909”. Example trace as follows:

Event: gr909 NOTIFY sip:2148298788@;user=phone SIP/2.0
Via: SIP/2.0/UDP;branch=z9hG4bKac101ead5060-76517495;rport
From: <sip:GR909@>;tag=rebootapp_tag
To: <sip:2148298788@;user=phone>
Event: gr909
Call-ID: 3-75ff0490-4bdccd8@ac101ead
CSeq: 1401 NOTIFY
Max-Forwards: 70
Contact: <sip:GR909@>
Content-Length: 0

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