SIP PoE Intercom with Stainless Steel Faceplate - Provides Two Way Communication for Secure Door or Gate Entry - About the Algo 8201The Algo SIP-Po - E Intercom is an IP Doorphone that offers handsfree visitor communication for visitors and guests at a secure entrance such as a ...SIP PoE Intercom with Stainless Steel Faceplate - Provides Two Way Communication for Secure Door or Gate Entry - About the Algo 8201The Algo SIP-Po - E Intercom is an IP Doorphone that offers handsfree visitor communication for visitors and guests at a secure entrance such as a door or a gate. The Algo 8201 is compatible with most Hosted / Cloud and Premise based Vo - IP Telephone Systems. - The outdoor rated UV stabilised plastic enclosure, corrosion resistant faceplate, conformally protected curcuitry and ba