ITMCAsia's FastPBX™ based telephony solutions offer a rich and flexible feature set. NetworkPBX offers both classical PBX functionality and advanced features, and interoperates with traditional standards-based telephony systems and Voice over IP systems. FastPBX™ offers the features one would expect of a large proprietary PBX system such as Voicemail, Conference Bridging, Call Queuing, and Call Detail Records. , Conference Bridging, Call Queuing, and Call Detail Records.