[Asterisk-Users] Occasional quiet voicemails

[Martin]

On Wednesday 07 September 2005 14:41, Rich Adamson wrote:
> I don't believe 2023 has anything to do with the 411P; it was basically
> an digium analog card issue (eg, TDM04b & x100p).
>
> Based on my tests and findings, the issue is the digium cards record
> voicemail messages at a very low audio level (very different from
> recording a voicemail from a sip phone). "If" the person leaving a VM
> message called in via the digium card, and that user was located close
> to "their" central office, the VM level is acceptable to poor. But, if
> that same person is further from their central office (adding additional
> transmission path loss), then that loss plus the digium analog card loss
> makes the VM difficult if not impossible to hear.
>
> So, thinking that statement through very carefully, you might have some
> users complain and other not, and the problem will not track against
> anything that you have control over (eg, where the remote user is calling
> from and the transmission loss they incur).
>
> If the digium analog cards passed audio through without any additional
> loss, your user's probably would not be complaining. But that extra loss
> is what I believe "is" the issue.
>
> Sounds like there might be a workaround coming for this.
>
> Rich


zapata.conf

usecallerid=yes
hidecallerid=no
callwaiting=yes
usecallingpres=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes
callreturn=yes
echocancel=yes
echocancelwhenbridged=no
echotraining=800

rxgain=5.0
txgain=5.0

group=0
callgroup=1
pickupgroup=1
immediate=no

improved it for me.  YMMV.

Regards...Martin