I am 15 years experienced senior software developer. I have mostly worked on the VOIP projects. i have designed hybrid VOIP PBX. I have used Asterisk, i have written modules for it and configured.
I used b2bua at the Lisää
41 $ USD 3 päivässä
7 freelanceria on tarjonnut keskimäärin 27 $ tähän työhön
Good day! I work with the asterisk and PBX systems over 8 years.
Also have expirience in Freeswitch
I created a lot of call centers that are working successfully for several years.
I have my own call center and my oLisää
I Have 7+ years of experience in web development.
I have gone through requirement.
I Have expertise in C#, Asp.Net, AngularJS, SqlServer, web services, JSON,
apis (Oath, payment gatway, etc.), MVC, Linq, Lisää