[chan-capi-users] Garbled playback to BRI

[Jim Hickstein]

>>  SIP <-> BRI           Good
>>  Playback(gsm) -> SIP  Good
>>  Playback(gsm) -> BRI  Scratchy
>>  Playback(ulaw) -> BRI Scratchy
> 
> Did you set the config [in capi.conf] to ulaw (default is alaw)?

Yes.

> If you use allow=ulaw in capi.conf, please try without it to
> disable vocoder.

YESS!!!  That works, for both ulaw and gsm sound files!  I just commented out 
"allow=" entirely.  Thank you, thank you!

I don't completely understand it, but that's OK.  If you want to explain it for 
the list, I will listen patiently. :-)

And indeed "capi show channels" at the Asterisk CLI no longer shows "vocoder" as 
the bproto on ISDN1#02 after the call, as it had been doing.  (I should have 
sent that observation before, as it now appears it was a good clue.)

--

Here's my capi.conf now:

; ----------------------------------------------------------------------
;  CONFIGURATION SCRIPT FOR EICON DIVA ISDN ADAPTERS
;  THIS SCRIPT WAS GENERATED AUTOMATICALLY BY
;  /usr/lib/eicon/divas/Config
; ----------------------------------------------------------------------

[general]
; ----------------------------------------------
; /usr/lib/eicon/divas/chancapi.general
; ----------------------------------------------
nationalprefix=1        ; or for example "+49"
internationalprefix=011  ; or for example "+"
;subscriberprefix=+4969 ; prefix including area code (some lines need this)
rxgain=1.0       ;linear receive gain, 1.0 = no change, use Diva rxdgain and 
rxagc for gain control
txgain=1.0       ;linear transmit gain, 1.0 = no change, use Diva txdgain and 
txagc for gain control
language=en      ;set default language
ulaw=yes        ;set this, if you live in u-law world instead of a-law

;jb.....         ;with Asterisk 1.4 you can configure jitterbuffer,
                  ;see Asterisk documentation for all jb* setting available.
;mohinterpret=default ;Asterisk 1.4: default music on hold class when placed on 
hold.


[ISDN1]
ntmode=no
isdnmode=msn
immediate=yes
incomingmsn=6902978,6516902978
group=1
controller=1
softdtmf=off
relaxdtmf=off
faxdetect=off
faxdetecttime=0
accountcode=
context=isdn-in
holdtype=local
echocancelold=no
bridge=yes
devices=2
echocancel=no
echocancelnlp=0
;allow=ulaw