回复：这条线都是关于DTMF的问题。。。

来源: 于 2012-03-31 15:31:25 [旧帖] [给我悄悄话] 本文已被阅读：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