VoIP Telephony Solution (A2billing Configuration)



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 two servers (or 3 max). 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 fist two servers, a third can be added.

You are required to utilise:

-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.)

-A2billing for the billing part.

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 A2Billing Customer interface.

2)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 A2Billing 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 done such a thing 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.

Please do not bid if you have never done this before. You will be wasting both my as well as your time and there is no need for this!

Please also note that the project is advertised elsewhere as well.

Thank you.

Tags: Integration, LAMP, Asterisk, A2Billing, Fax2Email, Follow-me, OpenSips / Kamailio, RTP, SBC, SIP, Telephony, Voicemail, Voip

Skills: Asterisk PBX, VoIP

See more: a2billing follow, configure a2billing voip, voip telephony solution a2billing configuration, follow a2billing, a2billing voicemail configuration users, fax2email a2billing, freeswitch a2billing, asterisk fax2email, a2billing configuration, Asterisk a2billing , well regarded, user tests, time residential, system tests, software testing as a service, server load test, quotation service, proxy testing software, first service residential, community software development, common questions, active test, media rtp a2billing, opensips asterisk a2billing capacity, opensips freeswitch balancer load

Project ID: #642941

8 freelancers are bidding on average $549 for this job


Kindly check PMB

$1000 USD in 10 days
(15 Reviews)

We've been working with asterisk and A2billing for 4 years now. From Prepaids Calling cards platform to IVR system via voice recognition system. So handling efficiently your project should not really be a matter for us More

$500 USD in 21 days
(7 Reviews)

I can certainly assist you with your need. I have been working with Asterisk, FreePBX, Freeswitch, Trixbox and all varieties of VoIP switches for over 10 years. I am the CEO of a VoIP company, Vocati Communicatio More

$295 USD in 1 day
(0 Reviews)

Asterisk dialplan syntax and constructs, including auto-attendants and simple IVR system · Effective use of Asterisk features, such as call parking, audio conferencing, find-me follow-me, and music on hold. More

$399 USD in 5 days
(0 Reviews)

please check PMB.

$750 USD in 10 days
(0 Reviews)

Please check pmb.for details information.

$500 USD in 20 days
(0 Reviews)

Hi, We are a company into Asterisk, VoIP, Unified Communications, Telephony platform. We can show you a demo right now of most of the features you need. We have implemented all the functional features as needed More

$550 USD in 9 days
(0 Reviews)

I'll install, configure, give technical support and make training on A2Billing. I can show u demo on your request Kindly give me ur server access so we start the work

$400 USD in 7 days
(0 Reviews)