Hi All,
Need help to resolve DTMF issue for FXS port, setup details given below,
1) CUCM 8.6.2.29000
2) Cisco 3945
IOS: c3900-universalk9-mz.SPA.153-1.T.bin
3)Vg224
IOS: vg224-i6k9s-mz.151-3.T4.bin
VGs (3945 and 224 registered with CUCM using SCCP protocol, when analog user do the PSTN calling DTMF does not work, from IP phones calling to same number DTMF works fine. One more observation from analog phone DTMF works fine over VOIP, only for PSTN calling we are facing DTMF issue.
Call Flow:
Analog Phone ----> AVG (3945 and 224) ----> CUCM -----> 3945PSTN VG(MGCP)
Thanks in advance for you help.
Regards
Akash
