[SR-Users] Huge undertaking and in need of advices from the community

[Stoyan Mihaylov]

1. From what I read - 1 Kamailio server should be good enough for up
to 50 K users.
3. You need Kamailio, Asterisk, Database (MySQL), and of course web
server (Apache) for GUI - setup of clients, allow clients to see their
calls.... You can use on separate server rtpproxy.
4. Pricing, depends of country. For USA, where most calls cost less
then cent, 1000 minutes are possible, but for Bulgaria - you cannot
offer such minutes.

2. Adapters are very important. There are lot of cheap adapters, which
do perfect job, but they did some troubles for me. Small and
acceptable troubles, but for me. One of problems we saw is with power
supply - after a year or so we saw how some of devices stopped
working. And we just replaced their power supply. Also - you can use
modified/adapted SIP clients - for desktop, for Android or iPhone.
Some of devices, can be used as routers. For me standard is
Grandstream - they are not cheap, but they just work - and I had no
problems with them. I use also different unnamed devices, and I can
try to find mails and addresses of companies for contacts, but we
purchased them long ago.



On Fri, Jan 18, 2013 at 3:36 PM, Rumen Mihailov <zealas1662 at gmail.com> wrote:
> Hi all,
>
> Thank you for all the help till now.
>
> Until now I was trying to setup completely redundant setup with
> Kamailio + asterisk boxes and for the moment i have the following
> configuration working.
>
> 2x Kamailios (Active/Passive)
> 2x Asterisks Kamailio is load balancing I can add more boxes if needed
> MySQL Cluster for all database needs
>
> Now the time has come and I will need to made this setup available for
> around 10K users. I will need to become an ITSP for an Internet
> Provider that is missing the telephony part from his package, so I
> have a couple of questions.
>
> 1. Is this setup OK to cover the needs of the customer base ? hardware
> will be decent
> 2. The end users will most probably need ATA adapters. What is the
> best cost effective solution I can go for ?
> 3. Do I need any other piece of software apart from the SIP Proxy and
> asterisk as I need the cost of implementation to be as low as
> possible.
> 4. Pricing...I can see that there are a lot of plans of the
> competitors that include 1000 minutes for free...Do you have any
> statistics what is the avarage % usage of prepaid minutes ?
> 5. Are there any other "stones" that I might hit and should be aware of ?
>
> Thank you for the information
>
> Best regards,
> Rumen
>
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