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Hi, Annyone let me know the procedure for both Analog as well as IP Phone to configure as Fax

I have observed one way voice when we call from cisco PABX (A) to Avaya PABX (B) as Cisco PABX can hear the voice of Avaya PABX, but Avaya PABX Cannot hear the Voice of Cisco PABX.Although Calling from Avaya to Cisco no issue observed and below are the Call logs and detail so any one let me...

Call transfer is not working from Avaya to Cisco via H323 Trunk although calling is working properly from Cisco to Avaya. Also call transfer is working properly from another avaya to cisco so I have checked Both exchange the only difference in customer option file where supplementry service is...

I am unable to receive the Name of the Caller when I am calling to Cisco CUCM (28xx) series to Avaya (85xx) via H323 trunk even name is tagged on the cisco side. But from this Avaya (85xx) to Cisco (28xx) Caller name and extension show to other party.Also Call from other CME or Avaya Exchange...

Hi, I have enclosed existed URI details so please let me know. Any input would be highly appreciated.

Hi, I am facing the problem to integrate Call manager with Avaya IP Office with SIP Trunk and Avaya IP Office able to Call cisco Call manager and but Call manager unable to call to Avaya IP Office Below are the Call flow and we isolate gateway from this scenario and make direct sip trunk...