1. 5 SIP Accounts 2. Original and Brand New 3. Competitive Prices 4. Fast Delivery 5. ... ,Call Waitting,Call forward,Call ID,3 way callDTMF Function:In-band DTMF,Out-of band DTMF,SIP info. ... 45WAN Interface:1×10Mbps/100Mbps RJ-45 PortFunction Keys:26 function keys besides standard keys 0-9,#,*Speaker:Full Duplex ... -condensing)Dimension:275mm×256mm×76mmWeight:1.11KG IP Phone with PSTN Port, POE function