November 2009

299

Figure 36. FXS Ground Start – Outgoing Call Timing Diagram

IISDN SMI MESSAGES:

L4L3mCALL_REQUEST

 

 

L3L4mPROGRESS

L3L4mSEIZE_COMP

L3L4mCONNECT

IISDN TIMERS:

 

 

 

answer_timer

 

 

 

hooktimer_offhook_answer

 

 

 

hooktimer_onhk_mod_out_rls

 

 

 

dptimer_end_dial_pause

 

 

 

dptimer_interdigit

 

 

 

dptimer_make

 

 

 

dptimer_break

 

 

 

fixed_pause_timer

 

 

 

hooktimer_onhk_mod_out_rls

 

 

 

glare_detection_timer

 

 

 

RECEIVED

 

 

 

A Bit

 

 

 

B Bit (ignored)

 

 

 

TRANSMITTED

 

DP Digit "2"

DP Digit "1"

A Bit

 

 

 

B Bit

 

 

 

NOTE: This diagram is designed to give the reader a general understanding of the sequence of events for this robbed

bit protocol over time. The timers and spacing on this graph are not proportional to the actual events that occur.

Revised 10-Nov-98

Revision 1.3

Ground Start Signaling

Page 299
Image 299
Dialogic 6.2 manual FXS Ground Start Outgoing Call Timing Diagram, November 299