IP Trunking Avaya to Avaya

jgdSAS · August 2nd, 2006, 12:33 PM

I have IP trunking set up between our HQ (Avaya S8700) and one of our regional offices (Avaya S8300)
and the conncetion drops after approx. 5 minutes of conversation.
WE use VPN connections from HQ to our regional offices.

Any ideas on what to look at?

nt7332 · August 10th, 2006, 09:22 AM

does the connection drop exactly at 5 min? can you put this on a timer?

liquidvw · August 16th, 2006, 05:52 PM

I wouldn't do trunking via VPN, your asking for problems without any QoS. Use a P2P data service and you should have no problems.

nt7332 · August 18th, 2006, 11:50 AM

Also what do you use for the VPN concentrator? Cisco? AVAYA? Kentrox? Linksys?....
I have had a TON of luck with the Kentrox Q sieres routers, and they are VERY easy to set up.

jgdSAS · September 20th, 2006, 03:49 PM

The cut off time varies. One time it may be 30 seconds, the next time it may be up to 5 minutes.
We are using a Cisco VPN concentrator.

Thanks for you time.

chill · September 20th, 2006, 10:03 PM

Is the link going down or just the IP Trunk connection? Set-up a continuous ping from one side to the other and monitor the reply times.

CHill

A-Train · October 3rd, 2006, 01:33 PM

How is the quality of the call? Is it really bad and then drops or is it fine and just cuts off? If it is bad, it is likely you are having QoS issues and the call is finally failing due to that. If it is fine and then just cuts off, try to see if how the link is holding up. VPN can be used all right for single VoIP connections (soft phones, etc), but trunking seems pretty risky.

jgdSAS · October 5th, 2006, 07:20 AM

The quality of the call is actually good. The cut off occurs without warning. The display on the phone changes from showing the Ext. and person I am talking to, to just showing my extension number as in the idle state.

I have installed VoIP Monitoring Manager on a trial basis to try to help me isolate to QoS issues or something else.

August 2nd, 2006, 12:33 PM	#1 (permalink)
jgdSAS Join Date: Apr 2005 Posts: 5	IP Trunking Avaya to Avaya I have IP trunking set up between our HQ (Avaya S8700) and one of our regional offices (Avaya S8300) and the conncetion drops after approx. 5 minutes of conversation. WE use VPN connections from HQ to our regional offices. Any ideas on what to look at? __________________ Thanks jgd.

August 10th, 2006, 09:22 AM	#2 (permalink)
nt7332 PBXtech SILVER 25+ posts Join Date: Sep 2004 Posts: 66	Re: IP Trunking Avaya to Avaya does the connection drop exactly at 5 min? can you put this on a timer?

August 16th, 2006, 05:52 PM	#3 (permalink)
liquidvw PBXtech PLATINUM 300+ posts Join Date: Nov 2004 Posts: 354	Re: IP Trunking Avaya to Avaya I wouldn't do trunking via VPN, your asking for problems without any QoS. Use a P2P data service and you should have no problems.

August 18th, 2006, 11:50 AM	#4 (permalink)
nt7332 PBXtech SILVER 25+ posts Join Date: Sep 2004 Posts: 66	Re: IP Trunking Avaya to Avaya Also what do you use for the VPN concentrator? Cisco? AVAYA? Kentrox? Linksys?.... I have had a TON of luck with the Kentrox Q sieres routers, and they are VERY easy to set up.

September 20th, 2006, 03:49 PM	#5 (permalink)
jgdSAS Join Date: Apr 2005 Posts: 5	Re: IP Trunking Avaya to Avaya The cut off time varies. One time it may be 30 seconds, the next time it may be up to 5 minutes. We are using a Cisco VPN concentrator. Thanks for you time. __________________ Thanks jgd.

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September 20th, 2006, 10:03 PM	#6 (permalink)
chill Join Date: Sep 2006 Posts: 14	Re: IP Trunking Avaya to Avaya Is the link going down or just the IP Trunk connection? Set-up a continuous ping from one side to the other and monitor the reply times. CHill

October 3rd, 2006, 01:33 PM	#7 (permalink)
A-Train PBXtech GOLD 100+ posts Join Date: Sep 2006 Posts: 241	Re: IP Trunking Avaya to Avaya How is the quality of the call? Is it really bad and then drops or is it fine and just cuts off? If it is bad, it is likely you are having QoS issues and the call is finally failing due to that. If it is fine and then just cuts off, try to see if how the link is holding up. VPN can be used all right for single VoIP connections (soft phones, etc), but trunking seems pretty risky.

October 5th, 2006, 07:20 AM	#8 (permalink)
jgdSAS Join Date: Apr 2005 Posts: 5	Re: IP Trunking Avaya to Avaya The quality of the call is actually good. The cut off occurs without warning. The display on the phone changes from showing the Ext. and person I am talking to, to just showing my extension number as in the idle state. I have installed VoIP Monitoring Manager on a trial basis to try to help me isolate to QoS issues or something else. __________________ Thanks jgd.

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