Grandstream Networks GXV3175 manual Grandstream Networks, Inc

Caller ID（Privacy）	Private header support for anonymous calls.
Firmware Upgrade	- Configuration file authentication (before accepting changes).
	- TFTP/HTTP upgrade support, allows users to specify different URLs for
	the server to download from.
Advanced Server Features	DNS SRV support, SIP server failure transfer, message waiting indicator
	and custom screensaver.
Security	- MD5 and MD5-sess DIGEST encoding and authentication.
	- Security protection: SIP over TLS and SRTP.
	- Support for TR-069.
	- Support for OpenVPN for increased security and control.

Grandstream Networks, Inc.	GXV3175 USER MANUAL	Page 10 of 119
	FIRMWARE VERSION 1.0.0.32	Updated : 12/2010