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Cisco BTS 10200 Softswitch ISDN Provisioning and Troubleshooting
OL-12436-02
Chapter 1 ISDN Provisioning
ISDN Features and Supplementary Services
ISDN Timer Configuration Parameters
The timer default values for the command-line interface (CLI) are set to default values required per the
network side. There are minor differences in the timer values of user-side timer versus network-side
timers, and these can be fine-tuned per user requirements.
compares the timer values of
network-side and user-side state machine as specified in Q.931 and as implemented in the Cisco BTS
10200 Softswitch.
ISDN Features and Supplementary Services
ISDN features and supplementary services include the following:
•
•
Calling and Connected Name Delivery
•
Calling Number Identification Service (CLIP/CLIR)
•
Table 1-1
Configuration (Protocol) Timers
Timer Number
BTS Default
User Side
Network Side
T301
300
>180
>180
T302
10
15
10–15
T303
4
4
4
T304
20
30
20
T305
30
30
30
T306
60
—
30
T307
3
—
180
T308
4
4
4
T309
90
90
90
T310
10
30–120
10
T312
— (T303 restarted
instead)
—
6
T313
Not implemented
4
—
T314
Not implemented
4
4
T316
30
120
120
T317
Not implemented
< 120
< 120
T318
Not applicable for PRI
4
—
T319
Not applicable for PRI
4
—
T320
Not implemented
—
30
T321
20
30
30
T322
4
4
4
T323
30
30
30