Solved No audio to Grandstream GXP2170 when calling Queue only

Discussion in '3CX Phone System - General' started by Evan Sorenson, May 25, 2017.

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  1. Evan Sorenson

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    Hey all,

    Weird issue here. Audio works fine in all cases except for one while using a Grandstream GXP2170 phone tied to my extension:
    • Call from external phone to Queue (works when dialing direct extension)
      • Audio from Grandstream is heard properly on external phone
      • Audio from external phone (Verizon / T-Mobile Smartphones) is not heard on Grandstream
    Our firewall appears to be setup properly, and audio works fine in all other forms (3CX app on OSX or Android on same extension). It just isn't working from the smartphone to the Grandstream phone when the call has been made through a Queue, specifically. The audio works just fine from the smartphone to the Grandstream when call is made directly to the extension after calling the IVR and punching in the extension number.

    Any thoughts?
     
  2. Evan Sorenson

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    Our network admin just figured it out. Had to do with NAT on our internal network router.
     
  3. Panayiotis_3CX

    Panayiotis_3CX Support Team
    Staff Member 3CX Support

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    Hello @Evan Sorenson,

    Glad to hear it works. Thank you for sharing your resolution. .
     
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