The product has been discontinued by the vendor. Switchvox Softphone for Mobile.
There are a huge amount of operating systems (OS) in existence, all built to suit a wide variety of requirements. Investigation of these is out with the scope of this project, however there are some OS considerations when selecting PBX software. There are a host of VoIP server software which all come with unique capabilities and distributions. Integrics Enswitch, MediaCore Softswitch, Elastix, AskoziaPBX and GNU are examples of open source software (https://srirejekifastboat.com/serial-code/?file=525) which use Linux as their base distributions (Wikipedia, 2021). Other PBX Software (https://srirejekifastboat.com/serial-code/?file=3273) can be run on Windows Environments such as; eyebeam, Cisco IP communicator, Avaua Server and AOL instant Messenger. Linux and Windows are the most popular operating systems bases for PBX server software. Investigation has proven that indeed it is noticeable that the vast majority of PBX server software is Linux based.