1 Reply Latest reply on Aug 29, 2016 5:18 AM by kits

    Sip to PRI call failing  Retransmission timeout reached on transmission

    kits New Member

      I am trying to setup a SIP to PRI from Asterisk on 908E. Outbound calls are working fine however when attempting to place an inbound call it rings 2 times then hangs up.


      When checking Adtran debug VOICE VERBOSE or isdn l2-formatted shows no activity while SIP STACK MESSAGE shows the asterisk box sending invites but there is never a response?

      Why would there be no response from the adtran to the sip messages?



      Asterisk Debug

        == Using SIP RTP CoS mark 5

          -- Called SIP/5551212@333333

          -- Local/5551219@TI1000-000012c0;1 is ringing

      [Aug 27 16:27:38] WARNING[25105]: chan_sip.c:3824 retrans_pkt: Retransmission timeout reached on transmission 23677cfd20fda9c568c63223411643e5@ for seqno 102 (Critical Request) -- See https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions

      Packet timed out after 6400ms with no response

      [Aug 27 16:27:38] WARNING[25105]: chan_sip.c:3853 retrans_pkt: Hanging up call 23677cfd20fda9c568c63223411643e5@ - no reply to our critical packet (see https://wiki.asterisk.org/wiki/display/AST/SIP+Retransmissions).

        == Everyone is busy/congested at this time (1:0/0/1)