ISDN Call Flows

Basic ISDN to SIP Call Flow

Basic SIP to ISDN Call Flow

Basic ISDN to H.323

 

 

Basic ISDN to SIP Call Flow

cf_isdn_to_sip.png

 

 

Basic  SIP to ISDN Call Flow

cf_sip_to_isdn.png

 

 

Basic  ISDN to H.323

cf_isdn_to_h323.png