g711

  1. support_alkivi

    Music quality differencewith G711a codec between a fixed or Call call.

    Hello, We have conducted several tests with different styles of music, and always get the same result: When a caller calls from a landline, our hold music is of good quality. When a caller calls from a GSM line, our hold music has a slightly distorted effect, with a kind of light white noise...

  2. Partial Faxes with G711 and Fax failure with T.38

    I have been working on this issue for a long time. About a month now. I have created a wireshark captures for the many many tests I have performed. Context: We have recently pulled a 3CX from a hosted cloud environment, to an on prim environment. We experienced a loss of fax capability. Enabled...

  3. Poor FXS support for FAX in 3cx, provisioning Grandstream ht802 leaves much to be desired

    3cx version: 16.0.3.676 on premise in a hyper-v vm FXS Grandstream ht802 firmware: 1.0.13.7 Provider: deutsche telekom, sip-trunk ngn FXS resides in the same local subnet as the 3cx server Goals: Use codecs G722, ALAW, ULAW, G729 in this order for voice extensions internally and externally...
  4. Andriy

    Sending fax using extensions g.711

    Hi everyone, Does anyone know if i can send FAXes using normal extension (not Fax extension or Fax server)? I am trying VentaFax and it connects to the extension without problem, but can not send fax with this error: "Modem detected BUSY signals while playing sound" The reason why I am asking...
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