----- Original Message ----- From: "John Goerzen" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Friday, November 18, 2005 2:37 AM Subject: [Asterisk-Users] Mission-Critical Deployments
> I work for a company that is nearing the end-of-life on its existing > Nortel Meridian switch and is considering Asterisk. We have > approximately 200 existing extensions, and probably 150 out of those 200 > are using basic analog phones and would stay that way. The rest would > have VOIP phones at the desk. > > We're seriously considering switching to Asterisk. I've done quite a > bit of tinkering with Asterisk for my home, but I'm not certain about a > few aspects of how we might deploy Asterisk in the enterprise. > > Here are my questions: > > 1. Where could I look for some resources on server sizing? Is it > any problem to support this number of users with a single server? A decent dual xeon should be fine for that...or 2 or 3 smaller servers... (depends on the funtionality you need) > 2. What do we need to do for our data network to make VOIP reliable? > QoS, basic traffic prioritization on the switch, vlan, ??? If it's doable, a serapate data network for VOIP. A friends install moved to that after running VOIP on their main network, and it made a huge difference. YMMV. > 3. What's the best way to integrate these 150 analog extensions? > I've seen interface boxes that usually come in 24-port sizes. Some > have an Ethernet/SIP interface to hook up to Asterisk, and others > have a T1 interface. What sounds best and is the most reliable? Here I am going to disagree with you. Buy cheap IP phones. The hardware, setup and lack of functionality of analog extensions makes them a second choice for me. > 4. What is a good company to contract with for emergency support? > Digium? Find a local consultant. There are quite a few around... > 5. What are people doing to make VOIP phones resiliant in the face of > power outages? I have found the device called a UPS to be a useful in this regard, when hooked up to POE. > Is there anybody here that would be willing to serve as a reference > check for Asterisk should we pursue that path? I could. But I live in melbourne, australia. Which is not the same as austria. > > Thanks, > > -- John All just my 2 cents. PaulH _______________________________________________ --Bandwidth and Colocation sponsored by Easynews.com -- Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
