[asterisk-users] Query

[sanchal.singh at alliance-infotech.com]

Hi,
   I am facing problem in configuring D-channel. I did the following  
configuration for TE-120P card
	/etc/zaptel.conf
		span=1,1,0,ccs,hdb3
		bchan=1-15,17-31
		dchan=16
    
       /etc/asterisk/zaptel.conf
		group=1
		signalling=pri_cpe
		switchtype=euroisdn
		context=incoming
		channel=1-15,17-31

	DIGIUM card is connected through cable to another end.On placing call
from other end to asterisk PBX ( through DIGIUM card ) the following
error messages is coming on console mode of asterisk 	

	Jul 26 17:09:42 WARNING[11925]: chan_zap.c:9148 pri_dchannel: 	PRI
Error: We think we're the CPE, but they think they're the CPE too.
                                                                                	== Primary D-Channel on span 1 down
	Jul 26 17:09:43 WARNING[11925]: chan_zap.c:2438 pri_find_dchan: 	No
D-channels available!  Using Primary channel 16 as D-channel 	anyway!

Can anybody tell me how to overcome this error.
Thanx and Regards
sanchal