hi, i have problem with following scenario pstn-ss7box-sip phone after few hours i have no ring tone when i call from pstn to sip phone (or exten => 200,1,ringing exten => 200,2,wait(30) ) asterisk 1.2.24 + chan_ss7-0.9+ss7.pl do you have idea where may be problem? thanks zaptel.conf span=1,1,5,ccs,hdb3,crc4 loadzone = us defaultzone=nl bchan=1-31 ss7.conf [linkset-siuc] enabled => yes enable_st => no use_connect => no hunting_policy => even_mru context => ss7 language => cz t35 => 15000,timeout subservice => auto [link-l1] linkset => siuc channels => 2-31 schannel => 1 firstcic => 1 enabled => yes echocancel => 31speech echocan_train => 350 echocan_taps => 128 [host-ss7box] enabled => yes opc => 0x1001 dpc => siuc:0x1000 links => l1:1 --------------------------------------- Marek Cervenka =======================================