[Asterisk-Users] MusicOnHold (MOH) silent on BudgeTone-100 only.

[Steve Haehnichen]

I have the MusicOnHold feature working great when called from ATA-186
extensions.  It's pretty cool.

However, when I call from a BudgeTone-100 phone, no music is heard --
instead it continues the ringing feedback and acts like the call is
unanswered.  At the same time, I can call from (multiple) ATA-186
extensions and hear music as long as I like.  How can I debug this?
As far as I can tell, Asterisk thinks it's connecting the BudgeTone
channel just fine.  Only it's silent.

Normal voice calls between BudgeTone and ATA-186 extensions work fine,
of course.  They use ulaw encoding.  It's just the MOH that fails to
answer.  There is no NAT or firewall involved -- all hosts are local.

I'm testing with dedicated extensions like this: 

exten => 302,1,WaitMusicOnHold(5)
exten => 303,1,MusicOnHold(loud)
exten => 304,1,MusicOnHold(default)

Here's the asterisk output from a working ATA-186 call:
*CLI>
    -- Executing MusicOnHold("SIP/200-990d", "loud") in new stack
    -- Started music on hold, class 'loud', on SIP/200-990d

[ beautiful music emanates from earpiece ]

    -- Stopped music on hold on SIP/200-990d
  == Spawn extension (dialout, 303, 1) exited non-zero on 'SIP/200-990d'


And from the silent BudgeTone-100:
    -- Executing MusicOnHold("SIP/202-351f", "loud") in new stack
    -- Started music on hold, class 'loud', on SIP/202-351f

[ Budgetone still provides ringing indication until I end.]

    -- Stopped music on hold on SIP/202-351f
  == Spawn extension (dialout, 303, 1) exited non-zero on 'SIP/202-351f'


While the BudgeTone is 'ringing', Asterisk appears to think it has a
live connection:

*CLI> sip show channels
Peer             User/ANR    Call ID      Seq (Tx/Rx)  Lag      Jitter  Format
192.168.42.56    202         26e8973e-e3  00101/06079  00000ms  0000ms  ULAW  
1 active SIP channel(s)

Has anyone else tried MOH from a Grandstream BudgeTone extension?  It
would mean a lot just to hear that it's my local config and not some
weird BT problem.  If someone could post a working BudgeTone SIP
definition, that might help too.

Thanks!
-Steve