For some time now we have been using the Cisco IPC software (v2). A common problem exsists for the majority of our user base regarding performance when travelling. It would seem when they are using the IPC from a public internet connection performnce is very poor, especially voice delay.
In testing we have shown that even in very high latency environments voice quality is good and delay is almost unnoticable.
This has made us question a potential issue with using our IPC software through our Checkpoint VPN gateways.
I guess the issue could be bandwidth but again during times when I noticed problems I was able to download at over 1Mbps and also checked our local internet gateway and again no signs of congestion.