Good morning, I have installed two cards B410P OK for outgoing calls concern about a incoming call, a hangup occurs after 2 rings I think it must come from misdn.conf unfortunately I do not know what variable act for normal operation. you have an idea with my thanks Yves attached file current misdn.conf [general] ; ; Sets the Path to the misdn-init.conf (for nt_ptp mode checking) ; misdn_init=/etc/misdn-init.conf debug=2 ntdebugflags=0 ntdebugfile=/var/log/misdn-nt.log tracefile=/var/log/asterisk/misdn.log bridging=no stop_tone_after_first_digit=yes append_digits2exten=yes dynamic_crypt=no crypt_prefix=** crypt_keys=test,muh ;;;;;;;;;;;;;;;;;;;;;;;;;;;;; [default] ;;;;;;;;;;;;;;;;;;;;;;;;;;;;; context=default language=fr musicclass=default senddtmf=yes far_alerting=yes allowed_bearers=all nationalprefix=0 internationalprefix=00 rxgain=0 txgain=0 te_choose_channel=no pmp_l1_check=yes reject_cause=16 need_more_infos=no nttimeout=no method=standard dialplan=0 localdialplan=0 cpndialplan=0 early_bconnect=yes incoming_early_audio=no ;always_immediate=no nodialtone=no callgroup=1 pickupgroup=1 presentation=-1 screen=-1 echocancel=yes ;echotraining=no jitterbuffer_upper_threshold=0 hdlc=no max_incoming=-1 max_outgoing=-1 [first_intern] ports = 1,2,3,4,5,6 context=Isdn_Entrant msns=* Part of extensions.conf [Isdn_Entrant] exten => s,1,Answer() include => Ip_Phone definis ;-------------------- gestion des SDA Ip_Phone definis as a macro extensions.conf