[Asterisk-Users] What hardware fits my needs?

[Mark Phillips]

4 T's for 100 users? That's almost a line each. Talk about overkill and 
expense!

Whatever happened to the 3:1 rule of thumb? That would require 33 lines. 
Obviously this would be a little difficult to produce so 2 T's for 48 
lines would be what I'd install.

If you have 100 users and they are all on the phone at the same time you 
either have a slammin' HellDesk or you have a big discipline problem 
within the firm.

I have many customers in the 100+ user range and with the exception of 1 
whom runs a HellDesk they all have only 2 T's with no reports of 
congestion either in or out.

Could it be you are over scaling things somewhat?

Mark, G7LTT/KC2ENI
Randolph, NJ
http://www.g7ltt.com


asterisk-users at ecessor.com wrote:
> Jami,
> 
> Providing a specific response to your question is rather difficult without a
> more meaningful list of parameters. 
> 
> 1. You say you have 20,000 distinct DIDs already. Are these provisioned
> through an existing telephony switch using multiple PRI lines (E1/T1)?
> Ideally you would need 4 PRI lines to support the average load of 100 users
> (4xE1=120 channels or 4xT1=96 channels).
> 
> However in reality there will be usage peaks - thus you may need to consider
> designing a system that can cope with double or treble that many
> simultaneous users in order to handle peak loads.
> 
> 2. Providing that many mailboxes and offering the functionality you describe
> is feasible using Asterisk. However you will undoubtedly need multiple
> servers - though again the number of servers and their specification is
> dependent on many additional factors.
> 
> 3. What is the nature of the service. i.e. Is it mission critical and do you
> need to ensure high-availability? This will impact the architecture/hardware
> configuration you choose. Also do you plan to locate all of the
> lines/servers at a single site or do you want to have redundancy spread
> across multiple sites in the event of an outage within your Central Office?
> 
> 4. How many messages of what maximum length do you anticipate each user
> being allowed to store? Again this will impact storage requirements.
> 
> 5. The www.digium.com site lists the cards they offer for interfacing to
> E1/T1 PRI lines. As for server hardware - you will ideally want to use fast
> multi-processor servers for your service. Again - the exacting specification
> is difficult to suggest without knowing more about what you are seeking to
> achieve.
> 
> 6. Asterisk is robust and powerful. However there is a learning curve
> spanning anything from many weeks to a few months depending on your
> available skills/resources. Setting up a "production grade" service on this
> scale will certainly require a deep understanding of both Linux/UNIX and
> Asterisk.
> 
> Neil
> 
> 
> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of S.Ammad Jami
> Sent: Thursday, December 22, 2005 8:18 PM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] What hardware fits my needs?
> 
> Hello:
> 
> I want setup an asterisk based VoiceMail Server(IVR).
> I have around 20K distinct users(DIDs) dialing to my system through
> telephones/mobiles. The users can dial to their mailboxes and listen/delete
> voicemails sent to them by others. The users can also record&send voicemails
> to other users. I expect to have 100 simultaneous users to my system.
> Please suggest me the hardware configuration I need to
> have: the cards, peripherals, no. of extensions, hardware server etc.
> 
> Thanks
> 
> Jami
> 
> 
> 	
> 		
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