Communicating with the Host• 5-8 •
The H.110 Basic Rate ISDN Board
Layer 3 “D” Commands for NT Ports
DAxxps ALERTing message on B channel xx, progress p,
signal s
DBxxA=ca(a) AT&T call appearance select, call appearance ca
optional adjunct control (a)
DBxxCA AT&T Conference Acknowledge on B channel xx
DBxxCRcc AT&T Conference Reject, cause cc
DBxxDA AT&T Drop Acknowledge on B channel xx
DBxxDR AT&T Drop Reject on B channel xx
DBxxFbmsff(i) AT&T Feature Indication, button type b, module m,
status type s, feature number ff, opt. ind. status i
DBxxGrrt(A=ca) AT&T Associated, call ref. rr, associated type t,
optional call appearance ca (type = setup)
DBxxHA AT&T Hold Acknowledge on B channel xx
DBxxHRcc AT&T Hold Reject on B channel xx, cause cc
DBxxK AT&T Redirect on B channel xx
DBxxRA AT&T Reconnect Acknowledge on B channel xx
DBxxRRcc AT&T Reconnect Reject, cause cc
DBxxTA AT&T Transfer Acknowledge on B channel xx
DBxxTRcc AT&T Transfer Reject, cause cc
DBxxX(a)(b)(c) AT&T INFO display fields a, b, and c
DCxx CONNect message on B channel xx
DDxx DISConnect message on B channel xx, normal
clearing, tones off
DDxxcc(s)(rr) DISConnect message on B channel xx, cause cc,
optional signal s, optional call reference rr
DExxHrr KEY HOLD on B channel xx, call reference rr
DExxNnrr EKTS NOTIFY on B channel xx, notification n, call
reference rr
DExxSb/# KEY SETUP, bearer capability b, called #
DExxSb(/#)A=ca KEY SETUP on B channel xx, bearer capability b,
optional called #, call appearance ca
DFxxffa Feature Indication activation a for feature indicator ff
on B channel xx
DGxxArr RETrieve ACKnowledge on xx, call ref. rr
DGxxRccrr RETrieve REJect call reference rr on B channel xx,
cause cc