User's Manual

Grandstream Networks, Inc. GXP2124 User Manual_1.0.0.01 Page 10 of 38
Support NAT traversal using IETF STUN and Symmetric RTP
Support for IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS
Firmware
Upgrades
Support firmware upgrade via TFTP or HTTP,
Support for Authenticating configuration file before accepting changes
User specific URL for configuration file and firmware files
Advanced
Server Features
Message waiting indication, support DNS SRV Look up and SIP Server Fail Over,
Support customizable idle screen via downloading XML by HTTP/TFTP
Security DIGEST authentication and encryption using MD5 and MD5-sess, SRTP, SIP over
TLS