> > Does your telco provide you with SLAs that make five 9s reasonable at > all ? >
LOL... Our telco services could be down for several hours at a time. We found than most US Broadband carriers (DSL and Cable) offer a "best effort" zero SLA service. If you are using broadband as a primary transport, expect the failure points to be "up stream" more than "in house". > Do you really need five 9s ? There is no such thing I'm aware of in > enterprise grade telephony. Cisco has a white paper "IP Telephony: The Five Nines Story" http://www.cisco.com/warp/public/cc/so/neso/vvda/iptl/5nine_wp.htm My take on the "nine's" is that Telcordia SR-323 / Bellcore MIL-HDBK-217 attempted to predict reliability of individual electronic components, and marketing departments have used the predictions as sales tools to best an opponents product. > You have to go to "carrier grade" > equipment, which asterisk, and PCs in general, are definetly not aimed > at. > Most Carrier and even Enterprise phone equipment use a "blade" design. PC's can be configured in a hot swap blade design. Doug -- FREE Unlimited Worldwide Voip calling set-up an account and start saving today! http://www.voippages.com ext. 7000 http://www.pulver.com/fwd/ ext. 83740 free IP phone software @ http://www.xten.com/ http://iaxclient.sourceforge.net/iaxcomm/ _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users