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
[EMAIL PROTECTED] 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: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of S.Ammad Jami
Sent: Thursday, December 22, 2005 8:18 PM
To: [email protected]
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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