denial event 2343

[jeffjacobs]

Does anyone have any details about denial event 2343. I have looked in the Avaya documentation and found that it means Request reject received - TDM/HP connection but I have no idea what that is.

We have an Avaya CM, 6.3. We are in the process of moving all our DID numbers from TDM to SIP. We have completed this for over 3,000 of our 12,000 DIDs. We have one outlying office that has had nothing but trouble since their DIDs were moved. The trouble is only around faxing. None of our other offices have this much of a problem with faxing over SIP. We have worked with our Avaya business partner to ensure the T.38 codec is set correctly.

Here is a trace of a fax extension that shows the denial event.

16:42:49 TRACE STARTED 03/26/2015 CM Release String cold-03.0.124.0-21754
16:44:09 active station 53432 cid 0x3a48
16:44:09 xoip options: fax:Relay modemff tty:US (igc)
xoip ip: [10.130.37.240]:2076
16:44:09 xoip options: fax:Relay modemff tty:US (igc)
xoip ip: [10.50.241.137]:20344
16:44:09 G729 ssff ps:20 - IGC created
rgn:37 [10.130.37.240]:2076 (GW37)
rgn:1 [10.50.241.137]:20344 (PN11)
16:44:09 G729 ssff ps:20
rgn:1 [172.30.0.2]:16456
rgn:37 [10.130.37.240]:2082
16:44:09 xoip options: fax:T38 modemff tty:US uid:0x507cb
xoip ip: [10.130.37.240]:2082
16:44:09 IGC removed
rgn:37 [10.130.37.240]:2076 (GW37)
rgn:1 [10.50.241.137]:20344 (PN11)
16:44:12 Tone Det T38 Fax aux:none tone:CED uid:0x507cb
From voip: [10.130.37.240]:2082
16:44:12 T38Req Sent to: [172.30.0.2]:16456
16:44:12 ReqAck From: [172.30.0.2]:16456
T38mode:fb:0 jb:0 mmr:0 ec:2 rm:1 buf:200 ps:100 br:96 ver:0 ecm:1
16:44:12 T38SeqCompl: rn:1 [172.30.0.2]:16456
16:44:12 T38SeqCompl: rn:37 [10.130.37.240]:2082
16:44:12 Tone Det T38 Fax aux:none tone:CED uid:0x507cb
From voip: [10.130.37.240]:2082
16:44:12 call-forwarding 53432
16:44:12 denial event 2343: ReqMode reject received D1=0x7f4007cb D2=0x3
16:44:12 Start T38 Fax aux:none tone:CED uid:0x507cb
From voip: [10.130.37.240]:2082
16:44:12 idle trunk-group 100 member 63 cid 0x3a48
16:44:16 Calling party trunk-group 100 member 63 cid 0x3a93
16:44:16 Calling Number & Name 6507735495 NO-CPName
16:44:16 dial 53432
16:44:16 term station 53432 cid 0x3a93
16:44:16 idle trunk-group 100 cid 0x3a93
16:44:16 Calling party trunk-group 100 member 63 cid 0x3a93
16:44:16 Calling Number & Name NO-CPNumber NO-CPName
16:44:22 active station 53432 cid 0x3aa0
16:44:32 denial event 1643: Off-hook dialing time out D1=0x85bb D2=0x3aa0
16:44:32 denial station 53432 cid 0x3aa0
16:44:54 idle station 53432 cid 0x3aa0

 

[kyle555]

Can you even fax t.38 over G729?

 

[jeffjacobs]

What I was told by our business partner is the call would start at G729 because that is the primary audio codec, but once the call is identified at fax the codec will shift to T.38. So on page 2 of ip-codec-set 3 (which is the codec set all our outlying locations use) is set for FAX - Mode t.38-G711-fallback.