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SIP call not received on Android app after sip registration & IncomingCallReceiver registration.

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Ziaul

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My application status: SIP registration successful, I can call to other VoIP app (Ex: 3cx, Zoiper) from my app, can hear sound from my app but 3cx/Zoiper user can't hear sound from my app. My incoming call receiver is registered successfully, but my app is not receiving any sip call.

On Activity Log of 3cx dashboard I can see that:
"[CM503003]: Call(C:24): Call to <sip:[email protected]:5060> has failed; Cause: 408 Request Timeout/INVITE from local:

I have run firewall checker (result is attached below) and result seems OK.
Attachments: (3cx extension info files, firewall check results, IncommingCallReceiver)
Please Help me to fix this.
 

Attachments

  • 3CX firewall check result.pdf
    26.9 KB · Views: 1
  • IncommingCallReceiver.pdf
    42.2 KB · Views: 0
  • General.png
    General.png
    29.6 KB · Views: 1
  • VoiceMail.png
    VoiceMail.png
    41.1 KB · Views: 1
  • Forwarding Rules.png
    Forwarding Rules.png
    49.4 KB · Views: 1
  • Phone Provisioning.png
    Phone Provisioning.png
    42.9 KB · Views: 1
  • BLF.png
    BLF.png
    27.7 KB · Views: 0
  • rights.png
    rights.png
    50.2 KB · Views: 1
  • options.png
    options.png
    56.7 KB · Views: 1
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