I want to learn how to use OpenSips for integration with freeswitch or asterisk.
I know SIP, linux and VOIP well, but need to understand how to setup, configure and secure a carrier grade voip network.
If you have extensive experience using SIP proxies,RTP proxies, etc.., Then provide a brief synopsis of your experience and what you'll provide training on.
7 freelancere byder i gennemsnit $674 for dette job
hi sir i am now working with an pstn operator as an engineer .in Bangladesh. we use asterisk based sip trunk. so in freelance i can do that . coz i have to do work with asterisk based secure vop network.