IP POE OUTDOOR FLUSH MOUNT AUDIO INTERCOM STATION XC-9137AS Datasheet Manual Firmware FeaturesEASY CONFIGURATIONUNIFIED COMMUNICATOIN COMPATIBILITYRECEIVING ANNOUCEMENTSFull-Duplex CommunicationBenefits of SPON 9137AS POE Audio IntercomChanging configurations a matter of mouse clicks Ethernet cable less 5 than multi pair copperEasier to get and terminate (for average person )Once (properly ) configured very reliablePoE (IEEE 802.3af) for plug and play network connectivity.