SIP Softphone client with encryption to use in blocked areas

Hi I can do this for you. Please check your PMB.

Hi, I can do this for you. Please check PMB.

We can do it in USD 1000/- Without following two features, Address Book Microsoft Outlook Sync with Address Book If you must need to include above two features then we can do it in USD 1400/-

Hello, First of all, Happy Thanksgiving Day and thanks for this project post. I had been working for telecommunications and VOIP companies for more than four years, and therefore the requirement is not new to me. However, in my experience, just mere encryption alone may not able to overcome firewalls in national gateway levels as people tend to block the SIP port 5060, SIP headers as well as use many heuristics. One solution that worked for me always is to embed a small layer 3 VPN (application layer VPN) within the softphone. I am also open to use your methodology regardless, that is, to use generic message encryption. Ultimately it's your choice. The only shortcoming I have is, since I have worked in Softphone, VOIP, Colaboration server and IM client development for a long time, I know the complexities to each single byte of code. Therefore, my time estimate will not be as ambitious as other bidders here. I do estimate a rather practical timeline for this development. Thanks again for your precious time studying my bid. Best Regards.

Hi, experienced PC2phone developer here. To make sure that voip work well among limited networking, you should encrypt both SIP signal and RTP stream in softphone and sipproxy and RTP server. Welcome to contact me.

Hi, We have Softphone for Blocked area, Please contact via PMB (INBOX) for more details

We just did a project exactly like this for a US military related company.

Hi, see PM, thanks