ISDN Protocol Administrator's and Developer's Guide ... - Intervoice

Using ISDN ConsoleT316Starts following the sending of a Restart message. This timer isstopped upon receipt of a Restart Acknowledge message. If thistimer expires, another Restart message is sent. The range is 1 to 600seconds.T3M1Starts after a Service message is sent. This timer is stopped uponreceipt of a Service Acknowledge message. If this timer expires,another Service message is sent marking this line as Near EndMaintenance. The range is 1 to 600 seconds.T321Starts if the D Channel fails. This timer is stopped upon receipt of avalid Layer 3 message. If this timer expires, the Omvia MediaServer sends a Data Link Establishment request on the D channel.The range is 1 to 600 seconds.T322Starts after a Status Enquiry message is sent. This timer is stoppedupon receipt of a Status message. If this timer expires, another StatusEnquiry message is sent, and the timer is restarted. A maximum ofthree Status Enquiry messages are sent if there is not a Statusmessage response. T322 is a switch-specific timing parameter,which is defined in L3INIT, and cannot be adjusted by the user.T386Starts after a Facility message is sent. This timer is stopped uponreceipt of a Facility message. If this timer expires, the system checksto see if the call has been disconnected. If the call has NOT beendisconnected, a second Facility message is sent. If there is still noresponse to this Facility message, an error is sent to the TelephonyServices Gateway. This is a Cornet N specific timer.T406Indicates that a Facility message was sent requesting a transfer. Thistimer is started upon receiving a response Facility message, whichcontains a Reject of the transfer request. Following the start of thetimer, another Facility message is then sent. If this timer expires, aFacility message is sent containing a Far End Disconnect message,then the line is made Idle. The timer is stopped when a validresponse message is received.60001262, First Edition ISDN Console 14-9