Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

DTMF Not Recognized

DTMF Not Recognized

DTMF Not Recognized

CM 7.1.3
Session Mgr 7.1.3
OfficeLinx VM

Just set up a new remote office with a G430 MG on a new network region (NR). The [three] H.323 9608 phones there register to CM through the new NR. When they call into OfficeLinx voicemail, the DTMF tones are not recognized. OfficeLinx continues to ask for password even though it was entered. A list trace shows the digits being passed, but OfficeLinx does not recognize/acknowledge them.

There are several other remote offices with their own NR that work fine. Moreover, when I force one of the phones at the new office to register with one of the other [working] NR, it works.

I have gone line by line comparing the new NR to a working NR and there is no difference (other than NR number, location number, and name). They all use the same trunk group and signaling group to connect with OfficeLinx.

Any idea what's going on and how to fix it?


RE: DTMF Not Recognized

Do you happen to be using in-band tones and G729 between those regions?

RE: DTMF Not Recognized

Figured it out. The network guys had the GW blocked from accessing voicemail. Normally, that shouldn't be an issue because the phones register directly with CM. But DTMF uses RTP which require DSP resources. Those phones were using the GW's DSP resources.
Once they opened it up, it started working.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close