I want to create a voip system for a small community.
I basically want to create a voip platform that will be equivalent to a standard residential telephony service however with only four servers. The first server will play the role of a sip proxy, load balancer, SBC and media proxy. The other two will be telephony servers (i.e asterisk) that will handle the calls. The system must be scalable so when the capacity is reached on the servers, a more can be added.
You are required to utilize:
-A good SIP proxy to take care NAT bursting and media RTP issues (OpenSips?Kamailio?Freeswitch? You need to select which one and justify the reason behind.)
-Freeside to handle the billing aspect
Here you are required to enable the following common functions:
1)Voicemail: Users should be able to see (and listen) to their voicemails via their freeside Customer interface.
2) A follow me number. Users should be able to select a follow-me number that will be billed according to their active tariff. (If the forward is to a voip (SIP) number then there's no charge.
3 ) Fax2email. Each user should be able to receive a fax in his email. (Hylafax is a possible suggestion). User should be able to configure this via the freeside interface.
I will provide you with access to the two servers so you can perform the installation and testing.
You will be required to demonstrate to me the load balancing abilities of the setup. For example, when Telephony Server 1 is full of calls then the proxy sends the calls to the second Telephony server (the 2nd telephony server will also be provided for this test). The tests should be performed with appropriate testing software provided by you.
This is a telephony project for a small community and it should not be regarded as a large project. Your quotation must take this into consideration.
If (and only if) the project turns out successful financially, then further investment will be done and hence you will be doing the further development!
If you have completed this task before then you'll know that most of your time will be spent on doing the voicemail/follow-me/Fax2Email integration and not in the general setup.
If you have any questions please let me know.
Money will be put into escrow, no upfront payment will be released. Please do not bid if you have never completed this task before.