Re: [asterisk-users] No audio on Zap (T1/PRI) channels

On Wed, 3 Oct 2007, Steve Totaro wrote:

> Kevin P. Fleming wrote:
>> Steve Edwards wrote:
>>
>>
>>> [trunkgroups]
>>> trunkgroup = 1,24,96
>>> spanmap = 1,1,0
>>> spanmap = 2,1,2
>>> spanmap = 3,1,3
>>> spanmap = 4,1,1
>>>
>>
>> You caused the behavior you are seeing by configuring your spanmap this
>> way; you've got physical span #4 configured as the second span in the
>> trunkgroup, so Zaptel will treat physical channels 73-95 as logical
>> channels 1/1 through 1/23.
>>
> If it were configured as the second span, shouldn't is be channels 25-48
> rather than 1-23? voip-info was very unclear about this when I looked
> at it over a year ago. I finally got it working by trying different
> combinations in spanmap.
>
> Digium should have it's own wiki that is maintained by Digium.
> Voip-info is ok but much of it is old and or incorrect at this point.

Qwest and I fiddled for a couple of hours. The channels are answered in
ascending sequence and "match" between logical span/channel and
zap/channel. Channels 0/24 (zap/24) and 1/24 (zap/48) are "skipped"
because they are the primary and secondary D channels.

Still no joy -- no audio.

Here's zaptel.conf:

# span 1
span = 1,1,0,esf,b8zs
bchan = 1-23
dchan = 24

# span 2
span = 2,0,0,esf,b8zs
bchan = 25-47
dchan = 48

# span 3
span = 3,0,0,esf,b8zs
bchan = 49-72

# span 4
span = 4,2,0,esf,b8zs
bchan = 73-96

# (end of /etc/zaptel.conf)

and zapata.conf:

[trunkgroups]
trunkgroup = 1,24,48
spanmap = 1,1,0
spanmap = 2,1,1
spanmap = 3,1,2
spanmap = 4,1,3

[channels]
context = block-ani
echocancel = no
echocancelwhenbridged = no
echotraining = no
group = 1
resetinterval = never
signalling = pri_cpe
switchtype = dms100

; span 1 (1-24)
channel = 1-23
; span 2 (25-48)
channel = 25-47
; span 3 (49-72)
channel = 49-72
; span 4 (73-96)
channel = 73-96

; (end of /etc/asterisk/zapata.conf)

Any more clues on where to look to find my missing audio?

Thanks in advance,
------------------------------------------------------------------------
Steve Edwards sedwards@sedwards.com Voice: +1-760-468-3867 PST
Newline Fax: +1-760-731-3000

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