ELTEX SMG-4 - Page 84

84 SMG digital gateway
 '!': a special character indicating a breakdown finish; all other digits of the number are truncated.
 '$': a special character indicating a breakdown finish; all other digits of the number remain
unchanged.
 09, D, #, and * (not preceded by "+"): informational characters that substitute a digit in the
specified position of the number.
4.1.8.4 Q.931 Timers
This section defines configuration of the third level timers required for
Q.931 signalling protocol operation.
Timer names and default values are described in Q.931 ITU-T
recommendation, §9 List of System Parameters.
Name
Default Value, seconds
Range,
seconds
T301
180
180 – 360
T302
15
10 – 25
T303
4
4 – 10
T304
20
20 -30
T305
30
30 – 40
T306
30
30 -40
T307
180
180 – 240
T308
4
4 – 10
T309
90
6 -90
T310
10
10 – 20
T312
6
6 -12
T313
4
4 – 10
T314
4
4 – 10
T316
120
120 – 240
T317
120
120–240
not less than
T316
T320
30
30 – 60
T321
30
30 – 60
T322
4
4 – 10
4.1.8.5 SS7 Timers
This section defines configuration of MTP2, MTP3, and ISUP level timers of the SS-7 protocol.
To create, edit, or remove a profile, use the following buttons:
— Add Profile;
— Edit Profile Parameters;
— Remove Profile.