Aura to IP Office 4 digit dialing

[bixtool]

We will be installing a CM using VE. It will be replacing an IP Office SCN with approx 20 IP500's V1 and V2. We would like to install the core Cm and still be able to 4 digit dial to the IP Office systems before we convert them all to G430 gateways. Is the fastest way to just use the existing WAN and set up SIP trunks? Will be a temp solution but nedd it to be solid. Anyone have experience with this? Thanks for any input.
PKD

 

[lopes1211]

h323 trunks are quick and easy CM to IPO. We've done a ton of these using CM's as main hubs with dozens of IPO's slaved behind them.

-CL