Build a voip platform for IP to IP routing of voice traffic
$750-1500 USD
Imefungwa
Imechapishwa almost 7 years ago
$750-1500 USD
Kulipwa wakati wa kufikishwa
We are currently using Cisco IP2IP routers for routing voice traffic. The current system is based on cisco TCL language. We would like to replace the IP2IP routers with a single server able to route 500+ concurrent voip calls.
The new code would run as a Windows service, with interaction, monitoring and maintenance done through a web interface.
Communicate and authenticate with billing server using RADIUS protocol. It should send a RADIUS message to our billing server when a call arrives, when outbound is connected, disconnected, or gets a proceeding/progressing/alerting message, when a digit is detected on either leg, or when either end hangs up.
Route outbound calls through a series of outbound carriers, as instructed by billing server
Support codecs:
• G711 u-law
• G711 a-law
• G729
• G729b
• G723
• G723a
• G726
• GSM
• iLBC
Web interface should show current activity and CDR, which should be searchable by date/time, originating IP, destination number, destination country, or outbound carrier.
For any call in the last 4 days, display full SIP logs by clicking the line in the CDR, plus a direct link to the raw log file for each call using a distinct URL. For calls older than 4 days, the logs can be archived / zipped to save space.
Create, modify and delete outbound carriers:
• IP
• Choose list of supported codecs
• Prefix
Optionally perform transcoding between codecs or transparent routing of RTP.
Hi there! I have read what you exactly need, however I would like to ask you a few questions. I wouldn't call myself a master but I do work smart and do not rest until I get the job done. Please feel free to ping me anytime so we can have a detailed discussion. If I can deliver I will deliver in best possible way. Thanks
Hello, How are you today?
After reading the details about the project, I have placed my bid to work with, and am available to discuss about the project in detail.
So feel free to send me message to discuss more over chat.
I am able to deliver error-free project and the same one what you want exactly in a timely fashion, and outstanding quality, so let's go together for your project and your success on business.
I look forward to hearing from you, please just click me and say "Hi".
Then I will reply soon to your message.
You can check my previous experience in freelancer here, just click to check it.
https://www.freelancer.com/u/EliteSolution8.html
Best regards, CaiHong.
The experience our team have in VoIP and
WebRTC is Developing and maintaining
VoIP/Sip applications in .net/c++.
Developed WEBRTC Media Gateway in C++.
To Link PBX Vendors like Alcatel, Avaya, Cisco
and Traditional SIP Platforms with New Web
Media Technology. Call from PBX Based Hard
Phone or SIP Soft Phone and receive on Web
Browser. Also Vice Versa.
Developed SIP proxy in C++.
Proxy Supports:
External (Trunk Network) Routing.
B2bUA ( Back to Back User Agent) ,for
Intelligent Routing and Call Drop scenarios.
Voice Media Gateway to Record Calls.
Stateless / Stateful Communication.
IVR (Interactive Voice Response).
Tried and Tested on Major Telephony
Platforms Including AVAYA , Alcatel , CISCO.
Full familiarity with Csta/Tapi/Sip protocols.
Developed user friendly framework in
C++, to support PnP architecture , helping in
Rapid application development using C++/C#
for quick VoIP
integration.
Worked on CSTA Phase 1 Protocol for Alcatel
OmniPCX Office PBX. Implemented in C# .Net.
Worked on CSTA Phase 2 Protocol for Alcatel
OmniPCX Enterprise PBX. Implemented in C#
.Net
I want to discuss this project with you further, let me know the best suitable time for you to schedule the meeting, Feel free to message me at any time, i used to be online 14 hrs in a day on this website so probably you will get a quick response from my end..
Hi, I (Myself a senior PHP Developer) have a team having experience of more than 10 years in developing web and mobile applications.
I have a team of expert programmers who write robust and bug-free codes at the very first instance. After seeing our quality of work and the cooperation offered to you even after the work has been delivered to you, you’ll come to us again and again to avail our services.
I read through the job details extremely carefully and I am absolutely sure that I can do the project very well. I can achieve the results that you are asking for within your timeframe and budget.
I am confident I can exceed your expectations and I would love to work on your project.
Warm Regards
~Team Shopify
Hello,
I want to show you all relevant Demo and Designs which is similar to your project completed previously. To make sure about the requirement set and customizations, I want to discuss this project with you further on personal chat.
Let me know the best suitable time for you to schedule the meeting, Feel free to message me at any time, I use to be online 24x7 on Freelancer so probably you will get a quick response from my end.
Following are my Expertise Area:
1) Ruby on Rails
2)PHP with CodeIgniter and Laravel Framework.
3)Node JS
4)Angular JS
5)Mobile App Development
6) Shopify
7)Ruby
Thanks :-)
Hi,dear. I am a senior software developer. I have just checked your project report, I am able to perform this task with my developer team. I am looking forward to your proposal...
1.) No advance needed. You can pay after the milestone work is complete.
2.) I will satisfy you with my high quality and state of art work with eye catching designs.
3.) I shall communicate daily and shall provide daily work updates.
4.) 1 year support.
Hi,
I was going through your project specs and I have some questions to ask you.
Are you available to have a quick chat now?
Thanks and Best Regards
KD
