ISDN Signaling
Field
Integer multiples of 5, in the range 700 through 2000
1000
Specifies the value of the T200 timer, which acts as a retry time when attempting to establish the L2 data link. On starting to establish the link, the timer is started. The timer is stopped when the switch responds. On expiry, another L2 link establish message is sent to the switch and the timer is restarted. This is done for a particular number of retries until it is assumed that the switch is not ready to activate L2.