When we talk about VoIP (I mean pure VoIP) there is no need for Digium
cards. All the major and minor players support SIP.
I have never worked with any card. So cant say much about them.
-Jai
www.bingotelecom.com
From: Arya <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
Subject: Re: [asterisk-biz] SIP to PSTN Hardware
To: "Commercial and Business-Oriented Asterisk Discussion"
< [email protected]
<mailto:[email protected]>>
Message-ID:
<[EMAIL PROTECTED]
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Thank you for that great explanation Jal
So I would have to use Digital PSTN lines for large installations right? I
have to see if Digital is available in the area. If I would have to use 2
Asterisk boxes would I need 2 digital PSTN lines?
On 8/5/07, Jai Rangi <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
>
> Arya,
>
> This can be done very well with asterisk and ser/openser. Ser is very
good in handling/distributing the load to asterisk servers.
> The whole system can be scalable. SEE developers claims that it can
handle of thousand's of call at the same time. I have never tested 1000
calls. But I believe that.
> We have build the system with ser+asterisk+mysql. All the calls come
on ser and then ser can forward the calls to asterisk servers in round
robin fashion. That can also be done based on load or based on number of
calls. The complete system is scalable. Rule of thumb is 100
simultaneous calls per asterisk. So if you need 200 simultaneous
channels then 2 asterisk server if need 500 channels then 5 asterisk
boxes. Since every thing is coming from database its easy to add more
asterisk or ser servers. Distributing load on ser will involve the
companies who are sending traffic to you.
>
> Depending on the technical background, building this type of system
can take 6-8 weeks to *forever* (I am not joking). Been there and done
that. I am sure there are great experts is the lists. They can add their
experience too.
> Contact me off the list if you are planning to outsource the project.
If you decide to do it your self then post your technical questions to
ser mailing lists and asterisk-users mailing lists. People in the lists
are always willing to help.
>
> -Jai
> www.bingotelecom.com <http://www.bingotelecom.com>
>
>
>
> On Aug 4, 2007, at 9:18 PM, Alex Balashov wrote:
>
>
> > On Sat, 4 Aug 2007, Arya wrote:
> >
>
> >> ok thank you for the great explanation, so what would be good for
> >> large
> >> installations?
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