
Dialogic
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SS7 Protocols ISUP Programmer's Manual Issue 15
139
Timer ISUP Default
(seconds)
BICC Default
(seconds)
Description
before sending ACM
t11 not implemented not implemented N/A
t12 10 0 Waiting for BLA
t13 60 0 Delay to alert maintenance on failure to
receive BLA
t14 10 0 Waiting for UBA
t15 60 0 Delay to alert maintenance on failure to
receive UBA
t16 10 10 Waiting for RLC after sending RSC not
due to T5 expiry
t17 60 60 Delay to alert maintenance on failure to
receive acknowledgement of RSC.
T18 10 10 Waiting for GBA
t19 60 60 Delay to alert maintenance on failure to
receive GBA
t20 10 10 Waiting for GUA
t21 60 60 Delay to alert maintenance on failure to
receive GUA
t22 10 10 Waiting for GRA
t23 60 60 Delay to alert maintenance on failure to
receive GRA
t24 2 0 Waiting for sending COT on receipt of
backward check tone
t25 5 0 Waiting for sending CCR and repeat
continuity check
t26 120 0 Waiting for sending CCR on subsequent
cot failure
t27 240 0 Waiting for continuity check request on
receipt of cot failure indication
t28 10 10 Waiting for CQR
t29 0.5 0.5 Waiting for new congestion indication
t30 8 8 Delay to restore traffic by one step on
receipt of congestion indication
t31 not implemented not implemented N/A
t32 not implemented not implemented N/A
t33 14 14 Waiting for INF after sending INR
t34 3 3 Waiting for segmentation message
t35 20 20 Waiting for ST digit of for the minimum of
digits
t36 13 0 Wait for REL after receiving CCR (Note:
ANSI T1.113-1995 refers to this timer as
T34)
t37 not implemented not implemented N/A
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