Fix Asterisk + FreePBX + a2billing

Server OS: Centos 7

Software: Asterisk 13 + FreePBX + a2billinng

Network: Dynamic IP behind NAT


- Call receiver no ring

- No audio as it should to tell balance, dial 9 for sip or iax

Because this desktop behind NAT, i'll provide Teamviewer or Anydesk access

Asterisk error log you can get it in attachment

Skills: Asterisk PBX, Linux, Network Administration, System Admin, VoIP

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About the Employer:
( 4 reviews ) Kampung Kepayang, Malaysia

Project ID: #17496443

Awarded to:


Hi, After checking your log file. It seems you are using old nat format. We need to change the nat format and do the advancement in system to avoid issue like RTP. Im the best to solve this issue for you.

$25 USD in 3 days
(17 Reviews)

8 freelancers are bidding on average $28 for this job


Hi I'm an Asterisk expert as well a2billing administrator, Im very skilled fixing nat issue and I would be more than glad to help you with your issue

$35 USD in 1 day
(74 Reviews)

Hi, a2billing, freepbx, vicidial we are able to do this job. upto 1000 times setup a2b & configure & complete modified portal 16 times as per customer requirement. live modified a2billing demo link : [login to view URL] More

$30 USD in 1 day
(38 Reviews)

I can able to help you in fixing the NAT issue with your VoIP gateway, completed 100+ projects in past seven years of time, Please go through my past projects and reviews.

$25 USD in 0 days
(45 Reviews)

Hi there, I have lots of experience with such projects. I offer my services to resolve your issue. I assure you a professional solution.

$25 USD in 1 day
(5 Reviews)

Hello Sir, I am VOIP SIP dialer developer by profession for android and ios and window platform . Please contact me as soon as possible. i will be so happy to work for you. I Go through the job details carefully More

$25 USD in 1 day
(2 Reviews)

Hi, just change some features to solve it. If want answer to me and we can solve it. Regards, Leandro4

$35 USD in 1 day
(1 Review)

Dear Prospect Hiring Manager. Thank you for giving me a chance to bid on your project. i am a serious bidder here and i have already worked on a similar project before and can deliver as u have mentioned "I can do More

$25 USD in 1 day
(0 Reviews)