Hi,

we upgraded an Asterisk 1.4 with mISDN to 1.6 with chan_dahdi. Due to problems with iax channel posted earlier, we wanted to switch back to 1.4 version.

Server has 2 HBA cards, everything is running fine with 1.6, bri_cpe is recognized and the 7 euroISDN channels are running well, ingoing and outgoing.

Now we installed 1.4.38 version and no more ISDN. In logs we found this:

[2010-12-24 14:50:38] VERBOSE[1773] logger.c: == Parsing '/etc/asterisk/chan_dahdi.conf': [2010-12-24 14:50:38] VERBOSE[1773] logger.c: Found [2010-12-24 14:50:38] ERROR[1773] chan_dahdi.c: Unknown signalling method 'bri_cpe' [2010-12-24 14:50:38] ERROR[1773] chan_dahdi.c: Signalling must be specified before any channels are.

We think about a bug in libpri 1.4.11.4 so installed 1.4.11.5, same result. Dahdi linux and tools are 2.4.0 And yes, Asterisk is build with libpri ;-)

d...@myphoneserver:/usr/src$ strings /usr/src/asterisk-1.4.38/channels/chan_dahdi.so | grep '^DAHDI Telephony'
DAHDI Telephony w/PRI
DAHDI Telephony Driver w/PRI

Thanks for your help

--
Daniel

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