sng_isdn_stack_start 750 src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.c if (sng_isdn_stack_start(span) != FTDM_SUCCESS) { sng_isdn_stack_start 370 src/ftmod/ftmod_sangoma_isdn/ftmod_sangoma_isdn.h ftdm_status_t sng_isdn_stack_start(ftdm_span_t *span);