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Xadean's Empirical Musing > Posts > Audiocodes Abnormal Disconnect cause:50#GWAPP_REQUESTED_FAC_NOT_SUBSCRIBED
December 26
Audiocodes Abnormal Disconnect cause:50#GWAPP_REQUESTED_FAC_NOT_SUBSCRIBED

​Lync 2010, AudioCodes and T1 Trunk - Outbound calls fail

 
 

Environment:
  • Lync 2010
  • AudioCodes Mediant 1000 MSBG
    • T1/E1 Trunk Card
  • AT&T PRI Line
Issue: Outbound calls fail from Lync client or phone

Reason:
  • "Display Name" field is populated
  • "Type of Number" or TON is not set on AudioCodes
  • "Number Plan" or NPI is not set on AudioCodes
  • Syslog on AudioCodes shows the following message:
    • Abnormal Disconnect cause:50#GWAPP_REQUESTED_FAC_NOT_SUBSCRIBED
Fix:

(AudioCodes firmware 6.2 or greater)

Remove "Calling Name" at the Trunk level
  1. Open the AudioCodes web management console
  2. Click on "Full" radial button
  3. Expand "PSTN"
  4. Click on "Trunk Settings"
  5. Change the setting "Remove Calling Name" to "Enable"
  6. Click "Submit"
  7. Click "Burn"

Reference: http://blog.ucparticles.com/2012/08/lync-2010-audiocodes-and-t1-trunk.html

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