Bed voice quality, DTMF is not working - BRI

[nowickj]

Hello.

I have a problem with voice quality and DTMF is not working for external call.
We have checked it on two controllers (CXi and CXi II) and problems are the same. additional We made tests on 3 BRI cards.
Both controllers have fresh MiVB system and different backup (one is from July and second is form August). Backup from August is after Security Certyfication was uploaded.
All calls, announcements and DTMF in Internal calls are OK.
Additional We made a test using A 5000 and there is no problem with External calls and DTMF.

[nowickj]

Hello.

I have a problem with voice quality and DTMF is not working for external call.
We have checked it on two controllers (CXi and CXi II) and problems are the same. additional We made tests on 3 BRI cards.
Both controllers have fresh MiVB system and different backup (one is from July and second is form August). Backup from August is after Security Certyfication was uploaded.
All calls, announcements and DTMF in Internal calls are OK.
Additional We made a test using A 5000 and there is no problem with External calls and DTMF.

[acejavelin]

FYI... There is no need to "bump" a post here. If someone knew the answer or had an idea, they would post it.

Personally, I haven't even seen a BRI ISDN 2B+D line in over 20 years, but they were not very common in the US at any time...