We had quite a bit of fun testing with different SIP gateway providers and observing how each introduced a different range of issues related to translating media from legacy signal to RTP packets. The traffic to RestcommONE went through the PSTN, then to a SIP gateway service provider and then to RestcommONE. The real pain did not commence until we started testing against a legacy auto-dialer system that was connected to the PSTN.

Writing the integration code between the backend operational systems and RestcommONE was a relatively straightforward exercise. The company chose to replace it with a new VoIP system using SIP gateways to the PSTN. This system was reaching its limits and was due for upgrade or replacement. The customer in question has a legacy telephony system that is a mix of proprietary hardware and software plugged to the PSTN (T1 lines). Similar to the way Red Hat sells RHEL around the community Fedora project. If RestcommONE is a new term for you, it is just the brand under which we sell commercial quality versions of Mobicents. We have a customer who has been building a critical life-saving call system based on RestcommONE, SIP Servlets and Media Server. Maybe our experience will inspire you to contribute to the open discussion of testing real time media processing code. The solution that came out of it we added to the ever growing automated regression test suite. With that came a whole set of interesting problems to solve. Many folks from the Mobicents core team and the broader Mobicents community pitched in, but most notably Oleg Kulikoff, who was in charge for MMS 1.x and 2.x, and Yulian Oifa, who took over the media server project leadership near the end of the JSR 309 certification and is still is the acting project lead.Īs the project matured we naturally saw more deployments in real world scenarios. That was a major milestone which set a quality baseline that we have been adding to ever since. About a year ago we announced full compliance with JSR 309 (Java API for Media Server Control).

Admittedly real time media processing turned to be a harder problem than we anticipated.

We started building it almost five years ago. The Mobicents Media Server has been coming along nicely for the past year or so.

How to use wireshark to test voip