User`s manual

5
1.1 Key Features
z Compliant with IETF SIP standards
z Provide 2 10/100M RJ-45 ports for WAN and LAN connection
z Support G.729a/b, G.711a/µ-law, and G.726 codecs
z Support up to 3 SIP service domains
z Support STUN and Outbound proxy for NAT traversal
z Support VAD, CNG, EC, and Adaptive Jitter Buffer
z Support FSK / DTMF caller ID display
z Support Call Hold / Call Waiting / Call Forward
z Support 3-way conference
z Provide phone address book and speed dialing function
z Transmit voice and FAX (T.38 and in-band)
z Support PPTP client for VPN
z Support IP ToS/DSCP, and 802.1q/p for QoS
z Easy management via WEB and IVR/keypad