[cisco-voip] Media Encryption

[Tim Medley]

I have a new prospective customer in the financial industry that we  
are talking to. Question came up about media and possibly signaling  
encryption for CCM IP Phones (SCCP). We're running CCM 4.2 and CCM 6.

I setup the media encryption in a lab a couple of years ago, but don't  
remember much of the finer points. The concerns that I have are that  
my environment has IPIPGW's (which are very finicky), older MGCP based  
6608 Cat Ports for conferencing and for PSTN Access. From what I can  
tell no version of CCM supports media encryption with the 6608, how  
does this impact my design? Does CCM 4.2 support media encryption with  
the IPIPGW or would I have to use my CCM 6 cluster to support this?

My environment is a hosted/shared CCM model, what sort of difficulties  
will we face with a mixed mode cluster (some phones using encryption,  
some not)? Also, in regards to the IPIPGW's, can some calls be  
encrypted or do all call have to be encrypted? The docs, seem a bit  
fuzzy on this.

I'd be interested in hearing from others that have configure media and  
signaling encryption in a production environment.

thanks,

tm


Tim Medley
Appia Communications
(877) 277-4297 x112 Office