Quick DetailsPlace of Origin: Guangdong,Website:http://www.voipphonetech.com, China (Mainland) Brand Name: Linksys Model Number: RT31P2 Type: VoIP Gateway unlocked: yes warranty: 12 months wan port : 1 lan port : 3 rj11 port : 2Packaging & DeliveryPackaging Details:in box for Linksys wrt54glDelivery Detail:3-20 working daysunlocked New price  high quality Linksys VoIP phone adapter wrt54gl Router Product DescriptionFeaturesThree 10/100 BaseT Ethernet ports to share Internet connectionTwo RJ-11 voice ports for analog phones or fax machines with two independent telephone numbersSupports QoS (Quality of Service)to ensure best voice qualityAdvanced security management functions for port filtering, MAC address filtering,and DMZ hostingWeb-based configuration through a built-in web serverSupports remote provisioning with remote firmware upgradeSupports Universal Plug-and Play for easy configurationSpecificationsModel RT31P2Standards IEEE 802.3 (10BaseT), IEEE 802.3u (100BaseTX)Ports One 10/100 RJ-45 Internet Port,Three 10/100 RJ-45 Network Ports,Two Standard Phone Ports, One Power PortButton ResetCabling Type RJ-45 Ethernet Category 5,RJ-11 Standard Phone CableLEDs Power, Ethernet (1-3), Phone (1-2), InternetUPnP able/cert CertifiedNetwork Protocols TCP/IP, NetBEUI, IPX/SPXVoice Protocol Session Initiation Protocol (SIP v2)Voice Codecs G.711 a-law, G.711µ-law, G.726, G.729 A, G.723.1Ringer EquivalenceNumber (REN) 5 REN per RJ-11 portRing Frequency 10 Hz - 40 HzFXS Port Impedance Eight Configurable Setting Including North America600 ohms, European CTR21Ring Voltage 60 - 90 Vrms ConfigurablePackage including1XRouter1XPower supply1X RJ45 cable