I need your help to find a solution to this scenario.
We have 2 CTS 3xxx systems located each in a different site within a same company.
I wanted to know how to configure these two systems to communicate if the only network between the 2 sites is the Public Internet.
We have a CUCM for call control.
I was thinking about VCS Expressway but this system cannot be used with the CTS 3xxx series systems.
cts Packet loss( needs less than 1%), jitter(less than 10ms) /late packets are demons for the CTS. Does these things noted and taken care of so that assured bandwidht and network traffic is avilable?
: 64KBps Wideband Audio
|Network Requirements||Target||Warning Message||Call Terminated|
|One-way Network Delay||< 70 msec||< 150 msec||> 250 msec|
|Peak-to-Peak Delay Variation||< 10 msec||< 20 msec||< 40 msec|
|Packet Loss||< 0.05%||< 0.10%||> 0.20%|
Minimum Bandwidth Required
: 720p ~5.1MBps
Minimum Link Speed
: 720p - 15MBps
: 1080p = ~ 15.4 MBps
Thanks Vinanjun for your answer!
I noted your concerns regarding the bandwidth.
But my question was more oriented about the dial plan.
How to use SIP URI in this kind of scenario without the VCS Expressway but with the CUCM only?
Have you thought in direction of using Cisco ASA phone poxy feature. with this i think you can register this CTS systems to CUCM.
Although i never tried this but in my view it might work.
CTS 3000 endpoints will not register using SIP URI (even though they use sip for signalling and registering with CUCM)as Cisco tandberg does in VCS, and also its not provisioned to dial using sip uri's instead users can only use numbers to reach other endpoints. Im unsure if DMVPN can be used between sites since this is recommended for telepresence over broadband solution.
The below link show design for telepresence over broadband.