My attempts to use voice mail from my Grandstream Budgetone 101 phone always fail because Asterisk is seeing either double digits or dropped digits, no matter what dtmfmode setting I try. Here is what happens for each mode:
dtmfmode=info, phone set to send INFO 101: every digit is seen double, e.g. 123 is seen as 112233
dtmfmode=rfc2833, phone set to RFC2833: some digits are doubled in random places, e.g., 123 is sometimes seen as 1123, sometimes as 1233
dtmfmode=inband, phone set to send in-audio: some digits are dropped, e.g., 123 becomes 23 or 12
I have upgraded the firmware in my phones to 1.0.4.46 and Asterisk is a CVS
from 2/1/04. The codec in the phones is set to PCMU (ulaw) as first
preference, and the sip.conf has disallow=all followed by allow=ulaw for
each phone. Early dial is turned off.
Can anyone help me? Thanks,
-Ron
Many of us have had these problems at one time or another with GS and the solutions have been more or less the ones you've tried. In my experience, either inband or info works, providing that everything is configured correctly. The only suggestion I have is that you double and triple check that the entries in sip.conf and those on the phone are in perfect sync before testing. That is, make sure that "dtmfmode=xxxx" matches the setting on the phone, etc. Before you give up on any combination, reboot the phone and restart * (don't just reload).
For reference, here is a typical entry from my sip.conf:
[exten100] type=friend context=international callerid="Nattily Dressed" <888-8888 100> username=Natty host=192.168.0.100 ;or dynamic, as required dtmfmode=inband ;or rfc2833 or info, as required secret=Illnevertell qualify=5000 mailbox=100 canreinvite=no ;As long as the phones are NAT'ed
By the way, contrary to many posts on this list, I have
disallow=all allow=ulaw allow=alaw
appearing only once in the general section and all (22) of my phones and HT-286's work perfectly - just another one of those great * mysteries I guess.
Stephen R. Besch
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