Hello, I have installed an asterisk server with 7960 sip phones and an eicon card (diva 4bri server, I use only three channel) using capi channel. Everything seems to work fine, but from time to time (two or twice a day) during a call I get a capi error in asterisk log and asterisk doesn't work anymore: ===Apr 1 10:38:24 ERROR[20495]: File chan_capi.c, Line 738 (capi_write): error sending DATA_B3_REQ (error=0x1103, datalen=160) Apr 1 10:38:24 ERROR[20495]: File chan_capi.c, Line 738 (capi_write): error sending DATA_B3_REQ (error=0x1103, datalen=160) ===about 700 lines like this for each crash For four days, I've tried to reinstall eicon driver, asterisk, capi, but always the same error. When this error occurs, asterisk isn't crashed but doesn't work. I can login with "asterisk -r" but cannot stop the program "stop now". The channels(sip to CAPI) that were active are shown and I can't stop them and they are not working. To start again, I have to stop asterisk (killall), Unload my eicon capi driver. Then start eicon, and asterisk until another crash ... My question is simple. Is it fixable in Chan_capi? Do I have to speak with Eicon about their capi driver? do I have a problem on my isdn line? In fact where this error comes from and what does it mean? Does someone has the same configuration that is working fine? In such case could he give me the version of his software? Any information about this configuration would really help me. Thank you in advance Nicolas Bruxer