Yeastar MyPBX Enterprise M2 is a hybrid IP-PBX, which is designed for mid-sized companies and divisions of large organizations. Besides working with VoIP-SIP and IAX, the device works effectively with connection to analog phone lines like traditional telephony.
nfon is an IP-Centrex provider for enterprise customers. As the German market leader, nfon offers its technology also as a white label solution to other providers.