Connecting Two IPO 500 by SIP Trunk 1

[CTravel]

Hello,

I've done a fair bit of searching (and head scratching) to try to find a solution to connecting my two IPO500's together by SIP.

One is a v1 on 4.2. The other is a v2 on 6.0.18

Firstly, as far as I understand it, I can't use a H323 trunk without purchasing a relatively costly voice networking licence, hence why I'm trying SIP, as I have a number of SIP trunk licences. If this is incorrect please tell me.

Both IPO's are currently working with Gradwell on LAN2 on public firewalled IP's.

The offices have a VPN tunnel between them, which I wish to use as the route for LAN1.

I've seen a guide which I have followed as best I can, but it seems relatively old, and I have set up SIP trunks on both units with the ITSP IP as the LAN1 IP of the opposite unit.

I've also set up short codes such as 5XX/Dial/5N"@192.168.7.252" so that extensions 5xx are to the opposite unit.


Using monitor, I can see that they are communicating (just about) but I get "UNOBTAINABLE" on screen

I'm stuck. Can anyone help

Thank you

Paul

 

[kholladay]

http://www.ipofficehelp.com/freefiles/global_techtip_188.pdf

You can't centralize voicemail or any of the more advanced features like distributed hunt groups this way but you can connect them.

Kyle Holladay
ACSS & APSS SME Communications
MCP/MCTS Exchange 2007
Adtran ATSA, Aruba ACMA

"Thinking is the hardest work there is, which is the probable reason why so few engage in it." - Henry Ford

 

[intrigrant]

SCN won't work without a Voice Network License