VPS Mobile softphone for iPhone, iPod and iPad is a SIP client that works on all models of Apple's smartphones. The softphone supports following voice codecs: G729, G711, GSM, AMR NB and High Definition G722. The applicatoin also support for VoIP tunnel technology enabling working from blocked areas or from behind firewalls for both incoming and outgoing calls.
GMS is offered to VoIP providers as a branded version in a form that is ready to be uploaded to the App Store. Branding includes provider's logo, name and other changes in the dialer's design and the set of the available features.