L3 - T309 Support (ms)

Parameter group

ISDN Signaling

Access level

Field

Possible values

No
Yes

Defaults

Yes

Explanation

Specifies whether the ISDN L3 T309 timer is enabled. If you select Yes, active calls are not immediately cleared when a temporary failure in the ISDN signaling channel (D-channel) occurs. Calls being set up or cleared are lost.

If you select No, all calls are immediately cleared whenever any D-channel failure occurs.