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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.
network-side and user-side state machine as specified in Q.931 and as implemented in the Cisco BTS
10200 Softswitch.
Table 1-1
Timer Number
T301
T302
T303
T304
T305
T306
T307
T308
T309
T310
T312
T313
T314
T316
T317
T318
T319
T320
T321
T322
T323
ISDN Features and Supplementary Services
ISDN features and supplementary services include the following:
•
•
•
•
Cisco BTS 10200 Softswitch ISDN Provisioning and Troubleshooting
1-20
Configuration (Protocol) Timers
BTS Default
300
10
4
20
30
60
3
4
90
10
— (T303 restarted
instead)
Not implemented
Not implemented
30
Not implemented
Not applicable for PRI
Not applicable for PRI
Not implemented
20
4
30
Information Digit Feature
Calling and Connected Name Delivery
Calling Number Identification Service (CLIP/CLIR)
Redirecting Number Support
Chapter 1
Table 1-1
compares the timer values of
User Side
Network Side
>180
>180
15
10–15
4
4
30
20
30
30
—
30
—
180
4
4
90
90
30–120
10
—
6
4
—
4
4
120
120
< 120
< 120
4
—
4
—
—
30
30
30
4
4
30
30
ISDN Provisioning
OL-12436-02
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