CyberData VoIP products are compatible with all IP-PBXs that support the SIP protocol. We are currently undergoing interoperability testing with numerous IP-PBX makers. CyberData also verifies that our VoIP
products interoperate with particular IP-PBXs without pursuing official certification. In these cases, CyberData performs rigorous in-house testing of our products with IP-PBXs, and through such testing we are able to verify interoperability.
