[Asterisk-Users] Mission-Critical Deployments

[Johann Steinwendtner]

John,

why don't you migrate slowly to asterisk ? If you want to keep
most of your analog phone hardware, leave it on your Meridian 1.
The M1 is doing a good job on features on analog phone sets.
Also, your users are familiar with the call handling of the
M1. Install VoIP phones on Asterisk and connect Asterisk via
PRI to the M1.
Then you can replace step by step your phones.

Regards,

Hans

John Goerzen schrieb:
> 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?
> 
> 2. What do we need to do for our data network to make VOIP reliable?
>    QoS, basic traffic prioritization on the switch, vlan, ???
> 
> 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?
> 
> 4. What is a good company to contract with for emergency support?
>    Digium?
> 
> 5. What are people doing to make VOIP phones resiliant in the face of
>    power outages?
> 
> Is there anybody here that would be willing to serve as a reference
> check for Asterisk should we pursue that path?
> 
> Thanks,
> 
> -- John
> 
> 
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