回複：這條線都是關於DTMF的問題。。。

來源: 於 2012-03-31 15:31:25 [舊帖] [給我悄悄話] 本文已被閱讀：次

great, change the DTMF method fixed the issue... thanks a lot!!

1.  Change the DTMF transmit method to in-band.
Service Providers > ITSP Profile X > General > DTMFMethod = InBand