The MP-202 is a 2-line SIP gateway allowing residential and SOHO subscribers to connect ordinary POTS telephones or fax machines, and is interoperable with leading softswitches and SIP application servers for enabling legacy phone services such as caller ID and call waiting.Utilizing AudioCodes' VoIPerfect core architecture, and gaining from its accumulated experience in providing IP telephony solutions, the MP-20x series combines superior voice quality and state-of-the-art features for end users. The Voice over Data prioritization algorithm prevents degradation in voice quality even during large data transfers.