[PORT 1]
 -> name: isdn                       -> allowed_bearers: all            
 -> far_alerting: no                 -> rxgain: 0                       
 -> txgain: 0                        -> te_choose_channel: no           
 -> pmp_l1_check: no                 -> reject_cause: 16                
 -> block_on_alarm: no               -> hdlc: no                        
 -> context: from-pstn               -> language: es                    
 -> musicclass: default              -> callerid:                       
 -> method: standard                 -> dialplan: 0                     
 -> localdialplan: 0                 -> cpndialplan: 0                  
 -> nationalprefix: 0                -> internationalprefix: 00         
 -> presentation: -1                 -> screen: -1                      
 -> always_immediate: no             -> nodialtone: no                  
 -> immediate: no                    -> senddtmf: yes                   
 -> hold_allowed: no                 -> early_bconnect: yes             
 -> incoming_early_audio: no         -> echocancel: 128                 
 -> name: isdn                       -> need_more_infos: no             
 -> nttimeout: no                    -> jitterbuffer: 4000              
 -> jitterbuffer_upper_threshold: 0  -> callgroup: 1                    
 -> pickupgroup: 1                   -> msns: *                         
 -> ptp: no                         
asterisk1*CLI>