[Asterisk-Users] E1 PRI: Unable to set channel to linear mode?

[Derek Conniffe]

Hi all,

I have some E1 lines plugged into a digium TE410p and all looks happy 
but when I try to make an outgoing call I get this error message:

Apr 15 09:28:21 WARNING[9040]: chan_zap.c:3901 zt_read: Unable to set 
channel 31 (index 0) to linear mode.

I think "linear" mode is an audio format - like ulaw / alaw?  but I'm 
not sure....   Has anyone come across this?

Thanks very much,

Derek

PS I'm in Ireland with EuroISDN

PPS When I do try to make a test call (and get the error message above) 
the called party receives the call and, on answering, hears static (it 
must be loud too - it was described as a "brain damaging" noise by my 
poor test subjects :) ).

My /etc/zaptel.conf has:
span=1,1,0,ccs,hdb3,crc4
span=2,0,0,ccs,hdb3,crc4
span=3,0,0,ccs,hdb3,crc4
span=4,0,0,ccs,hdb3,crc4
bchan=1-15,32-46,63-77,94-108
dchan=16,47,78,109
bchan=17-31,48-62,79-93,110-124

And my /etc/asterisk/zapata.conf has:
[channels]
context=PRI-NTL
switchtype=euroisdn
signalling=pri_cpe
group=1
channel => 1-15,17-31
;group=2
channel=>32-46,48-62
;group=3
channel=>63-77,79-93
;group=4
channel=>94-108,110-124

And my test dial line is:
exten => _011353.,1,Dial,Zap/1-1/${EXTEN}
exten => _011353.,2,Busy
exten => _011353.,102,Busy


-- 


Derek Conniffe
Rivertower Ltd
DDI: (Local Ireland) 01 201 0146 (International) +353 1 201 0146
Mobile: (Local Ireland) 086 856 3823 (International) +353 86 856 3823
Main Line: (Local Ireland) 1890 45 70 74 (International) +353 1 201 0180
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Email: derek at rivertower.ie
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