Technical Manual

Scroll to the top of the page and click Update.5.
Solution 2: IOS Configuration
IOS configuration is achieved through this interface command:
Router(config−if)#isdn t310 <value in milliseconds>
You can check the setting using the show isdn timers command.
Router#show isdn timers
ISDN Serial2/0:15 Timers (dsl 0) Switchtype = primary−net5
ISDN Layer 2 values
K = 7 outstanding I−frames
N200 = 3 max number of retransmits
T200 = 1.000 seconds
T202 = 2.000 seconds
T203 = 10.000 seconds
ISDN Layer 3 values
T303 = 4.000 seconds
T304 = 30.000 seconds
T305 = 30.000 seconds
T306 = 30.000 seconds
T307 = 180.000 seconds