Remote Calls between Extensions.

[Eng123]

We installed UCP2400 in one site and has 5 remote sites connected through VPN to the HQ. The problem is when remote site A calls remote site B there is no voice but when remote site A calls remote site C it is working fine.

We forward the ports and add the router IP address in PGM 132 but still we only hear ring back tones in some areas and others can talk nomrally.

 

[xs650]

When you don´t have configured RTP relay the call is routed directly from
site A to B or from A to C.
Is there maybe a VPN connection from A to C but NOT from A to B?

 

[Eng123]

The Attached drawing will show the situation.

 

[xs650]

If you have a VOIM in the main system, I would try to use RTP relay to check if it
is a routing problem between the sites.
Set the station in the subsystems to different zones and set
the RTP relay rule to Forced to do for calls between these zones.

But then you need a VOIM chnanel for all calls between the zones.

 

[Eng123]

Thank you for the tip it is working now

 

[Eng123]

Hello xs650

We did the Zone programming but after we programmed the IP Network between the UCP and Avaya went down. Does the ZOne programming affect the IP Network in any way?

 

[xs650]

Hi,
do you have programmed the VOIM for the networking to Avaya into another zone?

I have just checked a system with a similiar setup where a LIK1200 is used
in a network with an Avaya IP Office and on external sides they use LIP phones
which are programmed into antother zone for the RTP relay.
The VOIMs are remain in zone 1 there.

 

[Eng123]

Hello

I kept the VOIM card in zone 1 and the other sites were divided to 6 different zones.

 

[xs650]

Try to make a wireshark trace to see what is going on there.
Hard to give a usefull tip without knowing the programming.
Maybe it is programmed via networking and the trial time has ended without
importing a networking license?

 

[eddiebullman]

hi xs650

i would like to know how you have got the IPO linked the UCP as i have got to do this in our office

 

[xs650]

The systems are connected via SIP trunking (VOIM).

 

[eddiebullman]

xs650

is that a direct connection between them or is that via a sip trunking provider

 

[xs650]

it is a direct network connection over a router.

 

[eddiebullman]

Hi xs650

i have been trying to get this to work on the same LAN but no joy will have to have another look at this to see what i can do

 

[xs650]

I only know the LIK side and there it is not very complicated.

-set the IP trunks in an own CO group, type should be did.
-in PGM 133 set the IPO IP as proxy server address and domain
-as From Id try to use Extension Outgoing CLI
Basically this should work now but to dial more confortable you can program
LCR to route the calls to the other side.

For fault finding wireshak is very helpful to see if the LIK is sending the call
to ther other side or not.