... Setting, VAD, CNGFull duplex hands-free speakerphoneSIP support SIP domain, SIP authentication (none, basic, MD5), DNS name of ... RJ9 connector)6 memory keysSupport POE Multilanguage realizes localization SIP application, support call forward/ transfer/ holding/ ... ChipsetBroadcomSDRAM128MbitsFlash32MbitsWeight0.99kgvoip ip phone for ip pbx solution IP Phone with L2TP VPN, 3 SIP Lines, POE Optional