I will be creating an ICT between CCM 6.1 and a remote 4.3 site.
It will be Non-GK controlled.
I believe i will need to:
1 - create the SAME ICT setup on both my Subs, pointing them to the same pair of remote IP addresses of the remote Subs.
2 - on the remote Subs, create ICT setup on each Sub pinting to my two Subs.
3 - (this is the bit i am unsure about) on the local cluster, what partition and CSS settings should i use?
4 - link the ICT to the relevant Route Pattern for non-local tie-line calls from my local cluster.
5 - repeat step 4 for the remote end too (remote side Route Pattrns to point to my local end)
I'm a little unclear about whether a new partition and CSS would be needed for the ICT? At present each phone (logged out - ext mob) has internal calling capabilities only. I would want to be able to allow both "logged out" and also "logged in" Ext Mob IP phones to be able to use the ICT if they needed to.
Any thoughts around how/what to use for the partiton and CSS appreciated. If i create a new partitoon and CSS for the ICT, how can i easily relate that to ALL my IP phones to allow *anyone* to establish an ICT call to the remote site? (We have several CSS's to allow very restricted internal calls only, thru to unrestricted calls to anywhere in the world. Different users have different CSS's.
I have one other CSS setup for *all* internal devices that each phone emplate uses, should i use such a CSS?
I have IP reachability and no firewalls blocking RTP or other IP packets.