8 Replies Latest reply on Jan 29, 2013 3:06 PM by skeller007

    T1 PRI restart messages every 60 minutes from Atlas 550

    skeller007 New Member

      I have an Atlas 550 with 2 PRI network cards connected to (2) cisco 2801 series router. My PRI is up and running fine and calls are routing through the Atlas to my cisco just fine. I see no slip seconds or errors on the T1 or interfaces. However i am noticing that every 60 minutes both of my circuits are recieving restart messages on all 24 channels from the atlas below. One of my circuits in h323 controlled PRI and the other is MGCP. the MGCP suffers the most as the only way to get it back in service is to bounce the MGCP service, but it is affecting both PRI cirucits. Does anyone know of a timer in the Atlas that can be tweaked or something that can be done to stop this behavior?? Calls are not going through when this happens...

       

      Jan 26 04:42:09.361: ISDN Se0/3/0:23 Q931: RX <- RESTART pd = 8  callref = 0x0000

              Channel ID i = 0xA98381

                      Exclusive, Channel 1

              Restart Indicator i = 0x80

      Jan 26 04:42:09.361: ISDN Se0/3/0:23 Q931: RX <- RESTART pd = 8  callref = 0x0000

              Channel ID i = 0xA98382

                      Exclusive, Channel 2

              Restart Indicator i = 0x80

      Jan 26 04:42:09.365: ISDN Se0/3/0:23 Q931: RX <- RESTART pd = 8  callref = 0x0000

              Channel ID i = 0xA98383

                      Exclusive, Channel 3

              Restart Indicator i = 0x80

       

      Jan 26 05:42:09.077: ISDN Se0/3/0:23 Q931: RX <- RESTART pd = 8  callref = 0x0000

              Channel ID i = 0xA98381

                      Exclusive, Channel 1

              Restart Indicator i = 0x80

      Jan 26 05:42:09.081: ISDN Se0/3/0:23 Q931: TX -> RESTART_ACK pd = 8  callref = 0x8000

              Channel ID i = 0xA98381

                      Exclusive, Channel 1

              Restart Indicator i = 0x80

      Jan 26 05:42:09.081: ISDN Se0/3/0:23 Q931: RX <- RESTART pd = 8  callref = 0x0000

              Channel ID i = 0xA98382

                      Exclusive, Channel 2

              Restart Indicator i = 0x80

      Jan 26 05:42:09.085: ISDN Se0/3/0:23 Q931: RX <- RESTART pd = 8  callref = 0x0000

              Channel ID i = 0xA98383

                      Exclusive, Channel 3

              Restart Indicator i = 0x80

      Jan 26 05:42:09.085: ISDN Se0/3/0:23 Q931: TX -> RESTART_ACK pd = 8  callref = 0x8000

              Channel ID i = 0xA98382

                      Exclusive, Channel 2

              Restart Indicator i = 0x80

        • Re: T1 PRI restart messages every 60 minutes from Atlas 550
          patrick Employee

          The B-channel restarts occur every 60 minutes when enabled (and it is enabled by default). The restarts are only performed on idle channels, but there does have to be an acknowledgement in order to keep the channels in service. If there is no acknowledgement then the channels are assumed to no longer be in service.

           

          The B-channel restarts can be disabled under the DIAL PLAN, USER TERM, in the IFCE CONFIG - "B CHANNEL RESTARTS." (This is not an option under the NET TERM, as the ATLAS will not send restarts out the NET TERM - only respond to them.)

           

          Hope this helps,

          Patrick

            • Re: T1 PRI restart messages every 60 minutes from Atlas 550
              skeller007 New Member

              Thank you Patrick, i am looking under Dial Plan > User Term > Interface Configuration in my Atlas 550 but there is no parameter for B Channel Restarts there. I see B Channel Selection toward the bottom and Busy Option is the last one. But on that screen there is no B Channel Restarts available. I am running Rev C.06.01. Is this not an option in this software version or model or am i just looking at the wrong thing? Thanks again!

                • Re: T1 PRI restart messages every 60 minutes from Atlas 550
                  patrick Employee

                  The B-channel restart option is not available in the Firmware you are currently running. If you upgrade the FW, you will gain the option. (I believe the feature was added in C.08.02, but I may be mistaken on that.)

                    • Re: T1 PRI restart messages every 60 minutes from Atlas 550
                      skeller007 New Member

                      THanks Patrick, i suspected that the firmware was an issue. Real quick how

                      risky is the firmware upgrade? I have never done one on an Atlas device and

                      was nervous before that i could permanently ruin the device if i didnt read

                      all of the procedure correctly,etc. In your estimation , is it pretty easy

                      to upgrade the firmware or is there a high level of caution and preparation

                      prior to doing so. Bear in mind i have worked in IT for many years and have

                      upgraded routers, switches, computers etc, but never an Atlas 550. I would

                      like to upgrade to get this feature..

                      On Tue, Jan 29, 2013 at 3:26 PM, patrick <