3 Replies Latest reply on Jun 5, 2012 9:20 AM by david
      • Re: If a T1 from the network goes down on a 924e, does the D/Channel go down on the PRI
        lukevich Employee

         

        Raul,

         

        The 900 if fed from the Provider has indepndent T1's, one for the SIP connection, and

         

        the second for the PRI. They are tied together with DSP chips that convert packetized voice to

         

        TDM voice, i.e. tones. If the primary clock goes down , we will revert to the secondary timing source

        or to our Internal oscillator. So the answer is NO, if the SIP side goes down the PRI side would not.

        You can configure a Probe, to busy out the PRI if the SIP side goes down. See also article 3383 configuring a Probe.

        http://kb.adtran.com/display/2/index.aspx?c=&cpc=&cid=&cat=&catURL=&r=0.707755148410797

        You should be using firmware A4.05.00 or higher, which is available on our website.

         

         

        Here is an example as well.

         

         

        probe FAILOVER icmp-echo

         

        destination zzz.zzz.zzz.zzz                                                                         zzz would be an IP address like your SIP server

         

        source-address xxx.xxx.xxx.xxx                                                                   Means ping zzz from xxx , with xxx being usually the wan address of the adtran

         

        period 5

         

        tolerance consecutive fail 5 pass 2                                                                If 5 failures initiate probe track , if 2 pass disable track

         

        no shutdown

         

        !

         

        track WANTRACK

         

        test if probe FAILOVER

         

        no shutdown

         

         

        voice trunk T02 type isdn

         

        description "PRI CONNECTION"

         

        resource-selection circular descending

         

        busy-out monitor track WANTRACK                                                               says busy-out this PRI if probe track initiated

         

        caller-id-override number-inbound 2565551212

         

        connect isdn-group 1

         

        modem-passthrough

         

        rtp delay-mode adaptive

         

        codec-group 729-711

        • Re: If a T1 from the network goes down on a 924e, does the D/Channel go down on the PRI
          david Employee

          Raul,

           

          I went ahead and flagged this post as "Assumed Answered".  If the response on this thread assisted you, please mark it as Correct or Helpful as the case may be with the applicable buttons.  This will make it visible and help other members of the community find solutions more easily.  If you still need assistance, we would be more than happy to continue working with you on this - just let us know in a reply.

           

          Thanks!

          David