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voip phone to landline communications ve

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  • #24727 Reply
    RAVIT0
    Guest

    we have cisco 7960 phones remotely connected using T1’s in 4 remote sights comming back into a cisco 3640 Gateway at a central location.
    Each remote sight has 1750 Cisco routers where the T1 ends.
    We have callManager3.1 & Unity
    PROBLEM:
    When a user calls from a landline to any VOIP phone.The caller can’t hear the voice properly but the receiver can hear it properly.
    What can we do to fix this problem
    Internally in our network an ipphone to a landline works just fine but when we call outside our network the receiver will here very very low voice.

    #24728 Reply
    Oscar
    Guest

    Ensure that you have configure the voice gateway and the IP Phone to talk using the same CODEC. ie G.729

    #24729 Reply
    Vurcos to Ravito
    Guest

    The issue could be due to a few things:
    Mis-matched Codec’s
    Low TX/RX gain caused by “Bottlenecking”
    Really knowing VoIP and testing methods helps.

    Please let me know if I can assist you any further

Viewing 3 posts - 1 through 3 (of 3 total)
Reply To: voip phone to landline communications ve
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