1. Yes Skinny is a light protocol. Skinny provides richer functionality than SIP. It's also much more secure.
2. Skinny supports all of the telephony codecs in use.
3. Yes you can change the port, configurable in Call Manager.
4. I'm in the Western part of the US. There are not any companies out here that offer a hosted Call Manager based telephony service. I don't know if others exist.
5. Not sure about the RADIUS question, but Call Manager has the billing function built in (Call Detail Record).
Main Topics
Browse All Topics





by: grbladesPosted on 2008-03-27 at 13:15:25ID: 21225351
I would suggest you have a look at an asterisk (http://www.asterisk.org) based system as it supports the IAX2 protocol. IAX2 runs over a single UDP port with none of the problems associated with NAT that SIP has. IAX2 uses a standard port 4569 but this can be easily reconfigured and clients typically allow you to specify an alternate port to use. IAX2 uses all of the same codecs that SIP supports so you can esily configure an Asterisk box to sit and translate between IAX2 and SIP if you wish with very little overhead as it doesnt have to transcode the audio.