Ana

look at Callmanager service parameter timers,

T305, 306, 308, 309 timers.

T305 Timer: This parameter specifies an ISDN Layer 3 timer for User (Disconnect Request) DISCONNECT sent, Network (Disconnect Indication) DISCONNECT without progress indicator sent. For exact timer definitions, refer to the Q.931 specification.

This is a required field.

Default: 30000

Minimum: 6000

Maximum: 150000

Unit: msec

T306 Timer: This parameter specifies an ISDN Layer 3 timer for Network (Disconnect Indication) DISCONNECT with progress indicator sent. For exact timer definitions, refer to the Q.931 specification.

This is a required field.

Default: 30000

Minimum: 6000

Maximum: 150000

Unit: msec

T308 Timer: This parameter specifies an ISDN Layer 3 timer for User (Release Request) RELEASE sent, Network (Release Request) RELEASE sent. For exact timer definitions, refer to the Q.931 specification.

This is a required field.

Default: 4000

Minimum: 800

Maximum: 20000

Unit: msec

T309 Timer: This parameter specifies an ISDN Layer 3 timer for User/Network (Any stable State) Datalink lost. For exact timer definitions, refer to the Q.931 specification.

This is a required field.

Default: 90000

Minimum: 18000

Maximum: 450000

Unit: msec