OTUC link keeps going out of service

Mr T · Post by **Mr T** » 29 Oct 2010 10:55

OTUC gurus, I need some assistance.

I have ICS 6.1 with local storage connected to one PCX release 9.1. When I dial the voicemail number of OTUC I get "network link out of service". If I restart the msd service, everything starts working, I can call OTUC numbers, leave voicemails, mwi works, all good. But 10 minutes later I call the number of OTUC and I get the "network link out of service". All my external voicemail numbers show registered with OTUC. In OTUC, CSTA link shows up and all icsd services are up and running.

Any ideas?

Thanks.

cavagnaro · Post by **cavagnaro** » 30 Oct 2010 10:42

What does SIP traces say?

Mr T · Post by **Mr T** » 01 Nov 2010 14:15

Thanks for the reply Cav,

Looks like I'm not getting a response from OTUC in the bad call trace. I attached two traces, a good call after resetting the msd service, and then a bad call once I can no longer call OTUC.

cavagnaro · Post by **cavagnaro** » 01 Nov 2010 17:06

Well for what I can see by some reason OXE is not able to connect to OTUC. When this happens if you launch a sipregister command what do you see? Are you able to connect to OTUC? Can you post the OXE SIP timers?

Mr T · Post by **Mr T** » 01 Nov 2010 17:34

Cav,

All external voicemail numbers show registered -

(1)jmacpu1> sipregister
*************************************************
Dump local registrar base
-------------------------------------------------
Address of record : 790
contact : sip:790@10.1.1.205:5070, UDP, 2555 s
-------------------------------------------------
Address of record : 794
contact : sip:794@10.1.1.205:5070, UDP, 2555 s
-------------------------------------------------
Address of record : 791
contact : sip:791@10.1.1.205:5070, UDP, 2555 s
-------------------------------------------------
Address of record : 799
contact : sip:799@10.1.1.205:5070, UDP, 2555 s
-------------------------------------------------
Address of record : 792
contact : sip:792@10.1.1.205:5070, UDP, 2555 s
-------------------------------------------------
Address of record : 793
contact : sip:793@10.1.1.205:5070, UDP, 2555 s
*************************************************
****** registred user number : 6
*************************************************

What do you mean am I able to connect to OTUC? I can ping OTUC just fine from the PCX and everywhere on the network, they are on the same subnet/vlan, plugged into the same switch. I have checked and I see absolutely no network issues on either the PCX or OTUC.

Here are the timers:

┌─Review/Modify: SIP Gateway──────────────────────────────────
Node Number (reserved) : 1
Instance (reserved) : 1
Instance (reserved) : 1

SIP Subnetwork : 2
SIP Trunk Group : 10
IP Address : 10.1.1.210
Machine name - Host : jmapcx101
SIP Proxy Port Number : 5060
SIP Subscribe Min Duration : 1800
SIP Subscribe Max Duration : 86400
Session Timer : 1800
Min Session Timer : 900
Session Timer Method + RE_INVITE
DNS local domain name :
DNS type + DNS A
SIP DNS1 IP Address : ---------------------------------------
SIP DNS2 IP Address : ---------------------------------------
SDP in 18x + True
Cac SIP-SIP + False
INFO method for remote extension + False

─Review/Modify: SIP Proxy──────────────────────────

Node Number (reserved) : 1
Instance (reserved) : 1
Instance (reserved) : 1

SIP initial time-out : 500
SIP timer T2 : 4000
Dns Timer overflow : 5000
Recursive search + False
Minimal authentication method + SIP None
Authentication realm : -------------
Only authenticated incoming calls + True
Framework Period : 3
Framework Nb Message By Period : 25
Framework Quarantine Period : 1800
TCP when long messages + True

───────────────────────────────────────────────────

┌─Review/Modify: SIP Registrar───────────────────────┐
│ │
│ Node Number (reserved) : 1 │
│ Instance (reserved) : 1 │
│ Instance (reserved) : 1 │
│ │
│ SIP Min Expiration Date : 1800 │
│ SIP Max Expiration Date : 86400 │
│ │
└────────────────────────────────────────────────────┘

cavagnaro · Post by **cavagnaro** » 05 Nov 2010 15:03

On SIP Proxy please try increasing SIP Timer T2 to 8000

can you also post how the EVM are created on OTUC?

Mr T · Post by **Mr T** » 10 Nov 2010 12:42

Thanks for the reply Cav and sorry for late reply, but I got it solved. It ended up being the firewall/iptables. I installed the fax server on the ICS box, unbeknownst to me this turns the iptables back on??? After turning iptables off, life is good.

You live you learn.