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OpenSER (Kamailio) + Asterisk + A2Billing platform

I have an a2billing + asterisk working in realtime. But i have issues with nat clients so i'm thinking to use Openser to solve nat issues and also get a more scalable system. I will give you Teamviewer access. So i need the following:

We need a serious professional to install and configure an OpenSER (Kamailio) integration with our Asterisk + A2Billing platform.

- OpenSER should act as Registrar with Nathelper + RTPProxy/MediaProxy and it should allow local users to call each other without passing through Asterisk. It should also route local, national and international calls like (011/00 prefix) to Asterisk + A2Billing. OpenSER should use a View of the A2Billing database to authenticate users.

- Asterisk + A2Billing should be configured so that new user accounts would be created in A2Billing. Also, each user should have their own voicemail account and OpenSER should route unanswered/failed calls to the user's voicemail.

- Wholesale inbound calls should be authenticated by IP address.

Server 1 = It Has Asterisk realtime + A2billing (i got now configured)

Server 2 = It Has Database (i got now configured)

Server 3 = it Must have openser (not configured)


voip clientes ----->Openser---->asterisk+a2billing

Since asterisk + a2billing are configuring and working, you wll only need to work with openser integration.

We need also support for openser in the future so this it will be a long term project.

If you have experience with openser + asterisk + integration don't doubt to bid... If not.. please don't loose your time.


Budget is not more than $300 for this Job, i have seen all similar integrations here like:


Also i have all installed asterisk, a2billing etc. i only need SER with integration.

so.. pelase fix your bid closer to budget and lets go to start.


Compétences : PBX Asterisk, Linux, VoIP

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Concernant l'employeur :
( 2 commentaires ) Lima, Peru

Nº du projet : #1078032

Décerné à:


Hi . I can help you.

%selectedBids___i_sum_sub_7% %project_currencyDetails_sign_sub_8% USD en 5 jours
(4 Commentaires)

12 freelance font une offre moyenne de $458 pour ce travail


hi. can do this for u. have huge exp with kamailio&asterisk. note, i highly recomend u do it as server1 a2billing+kamailio and server3 :a2billing+kamailio. voicemail must be done by a2billing, doing that on kamailio Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 5 jours
(138 Commentaires)

Hi, We are asterisk/a2billing/voip solution provider. Please check your pmb for further detail. Thanks

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 10 jours
(10 Commentaires)

Can do the job , regards

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 4 jours
(19 Commentaires)

Hello, I am ready for work. Please check your PM. Thanks.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 5 jours
(16 Commentaires)

Hi Please Check PMB.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 2 jours
(0 Commentaires)

Hi,please check PM.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 4 jours
(0 Commentaires)

Please check PMB

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 3 jours
(0 Commentaires)

ready installed freepbx '+ a2billing Can you help needs to be done for the integration of price of $ 150 can give the most

%bids___i_sum_sub_32% %project_currencyDetails_sign_sub_33% USD en 1 jour
(0 Commentaires)

I work on openser (opensips) and asterisk everyday. I can do it easy fast an secure.

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 7 jours
(0 Commentaires)

I've done same task in similar project (OpenSIPS/Kamailio + MediaProxy, A*, selfmade billing)

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 4 jours
(0 Commentaires)

plz check private msg

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% USD en 2 jours
(0 Commentaires)