LONDON UK and DALLAS USA, MAY 21, 2015 – 3CX, developer of the award winning Windows-based VoIP PBX 3CX Phone System, announces the successful interoperability testing with SIP trunking provider Ironton Global. 3CX customers can now take advantage of a
LONDON, UK and BRISBANE, AUSTRALIA, MAY 19, 2015 – 3CX, developer of the award-winning Windows VoIP PBX 3CX Phone System, announces that the interoperability testing with the Australian VoIP Service Provider, Neural Networks, has proven successful,
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eagle2 wrote:If you are familiar with Wireshark try to capture and analyze the traffic - there should be an obvious reason - probably the voice path is problematic between the remote extension and the gateway.
Have you tried 'PBX delivers audio' for remote extensions (I don't remember)?
What is the codec for PSTN lines in the gateway?
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