Keypad doesn't work in t-mobile voicemail from shortcut

[Dennis O'Flaherty]

When I call my voice mail I am prompted to "Press 7 to delete this message or press 9 to save it." After pressing 7, I should be told "message marked for deletion" but the message just gets repeated, so it seems the button press is not being forwarded to the voice mail service.

[Dennis O'Flaherty (doflah)]

Appears to be related to https://bugs.launchpad.net/dialer-app/+bug/1223303

The buttons work when I dial 1-805-637-7243 (Tmo voicemail) but fail when I use the 123 shortcut.

[Pat McGowan (pat-mcgowan)]

@Dennis The keypad is definitely working during calls. Perhaps you ran into bug #1187453

[Dennis O'Flaherty (doflah)]

Per comment 1, it seems to be failing in the same case that the "end call" button fails - calling from 123 or 611 instead of the full voicemail/service numbers. Still not working on mako r121.

[Dennis O'Flaherty (doflah)]

A similar bug was also filed against the phone-app: https://bugs.launchpad.net/phone-app/+bug/1234794

[Dennis O'Flaherty (doflah)]

I did some additional debugging this weekend. I enabled debug in ofonod and ran

     tail -f /var/log/syslog | grep DTMF

When I had dialed the real voicemail number and pressed the keypad, I saw the DTMF tones in syslog. No DTMF tones appeared if I dialed the shortcut and pressed the keypad.

[Tiago Salem Herrmann (tiagosh)]

I believe this is the same issue I described here:
https://bugs.launchpad.net/ubuntu/+source/ofono/+bug/1239869

If the number you dial is different from the one that appears in the header of the live call view in dialer-app, than I am pretty sure it is the same bug.

[Dennis O'Flaherty (doflah)]

Yeah, that sounds right. I'd filed a separate issue for the hangup button not working either, but I'm guessing it's probably a duplicate of this one.