If you are building a Q.SIG application using supplementary services, you must specify the address of the Q.SIG node when your application starts the stack. To do so, specify the address number and type in the ISDN_PROTOCOL_PARMS_Q931CC structure referenced in the isdnStartProtocol call. The following fields specify the address:
qsig_source_type_of_nb
qsig_source_party_nb_type
qsig_source_addr
For more information about these fields, including a list of possible values, see the Dialogic® NaturalAccess™ ISDN Messaging API Developer's Manual.