Hi, I have OBI units. But for some reasons, I need to find a very decent and reliable vendor-neutral Windows Desktop SIP client ( Not GV or Skype or vendor-locked-in application ). But it seems the whole world of programmers now exclusively focus on mobile development of the SIP/VOIP mobile app, or any app for that matter. The Desktop client has been completely ignored.
The few options available now for desktop SIP client, whether open source or commercial, leave really a lot to be desired ( probably due to programmers' laziness, or ignorant assumption of user preferences, etc. ). For example:
* In the Linphone Windows 7 desktop app, the volume is really low, and not configurable. Not sure why;
* In the MicroSIP Windows 7 desktop app, I cannot change the default port of 5060 to another port;
* No clear mentioning of whether the app will support the Call Waiting feature, or to fully simulate the "Flash" button on a handset.
* I want a choice to choose the white color scheme, instead of the crazy all-black-color scheme. Black color is hard to read, and cause big eye strain. Don't know why programmers are so obsessed with the black color scheme.
* Carrier-grade reliability. I need to use it for my work ( when working from home ) - Conference call, Conduct phone interview, Annual performance review meeting, etc. So any kind of app crash is not acceptable.
I am a software developer myself in the past. If I really cannot find a decent desktop SIP client, I may decide to get/buy a SIP SDK, and write my own SIP client. But it can be a major endeavor, and very time-consuming.