I used quadBri Junghanns card and I config zaptel.conf: ZAPTEL.CONF loadzone=it defaultzone=it span=1,1,3,ccs,ami span=2,2,3,ccs,ami span=3,0,3,ccs,ami span=4,0,3,ccs,ami bchan=1,2 dchan=3 bchan=4,5 dchan=6 bchan=7,8 dchan=9 bchan=10,11 dchan=12 ZAPATA.CONF [channels] language=it musiconhold=default switchtype = euroisdn ; p2mp TE mode (for connecting ISDN lines in point-to-multipoint mode) signalling = bri_cpe_ptmp ; p2p TE mode (for connecting ISDN lines in point-to-point mode) ;signalling = bri_cpe ; p2mp NT mode (for connecting ISDN phones in point-to-multipoint mode) ;signalling = bri_net_ptmp ; p2p NT mode (for connecting an ISDN pbx in point-to-point mode) ;signalling = bri_net pridialplan = local prilocaldialplan = local nationalprefix = 0 internationalprefix = 00 echocancel = yes context=isdn_incoming group = 1 channel => 1-2 group = 2 channel => 4-5 group = 3 channel => 7-8 group = 4 channel => 10-11 But when I hangup the channel, Asterisk show this message: Mar 6 17:31:20 WARNING[1437]: chan_zap.c:6570 handle_init_event: Detected alarm on channel 1: Red Alarm Mar 6 17:31:20 WARNING[1437]: chan_zap.c:1593 zt_disable_ec: Unable to disable echo cancellation on channel 1 Mar 6 17:31:20 WARNING[1437]: chan_zap.c:6570 handle_init_event: Detected alarm on channel 2: Red Alarm Mar 6 17:31:20 WARNING[1437]: chan_zap.c:1593 zt_disable_ec: Unable to disable echo cancellation on channel 2 Mar 6 17:31:20 NOTICE[1433]: chan_zap.c:8511 pri_dchannel: PRI got event: Alarm (4) on Primary D-channel of span 1 Mar 6 17:31:20 NOTICE[1433]: chan_zap.c:8518 pri_dchannel: pri_shutdown Mar 6 17:31:20 NOTICE[1437]: chan_zap.c:6565 handle_init_event: Alarm cleared on channel 1 Mar 6 17:31:20 NOTICE[1437]: chan_zap.c:6565 handle_init_event: Alarm cleared on channel 2 Mar 6 17:31:20 NOTICE[1433]: chan_zap.c:8511 pri_dchannel: PRI got event: No more alarm (5) on Primary D-channel of span 1 Why? And What i can doing for solve this problem? Thanks ___________________________________ Yahoo! Mail: gratis 1GB per i messaggi e allegati da 10MB http://mail.yahoo.it