PLANET VIP-2020PT - Manual (Page 15)

Enterprise HD PoE IP Phone
VIP-2020PT
Simple Network Time Protocol (SNTP) (RFC 2030)
Backward compatible with RFC 2543
Session Timer (RFC 4028)
SDP (RFC 2327)
NAPTR for SIP URI Lookup (RFC 2915)
Voice Gateway
SIP version 2 (RFC 3261, 3262, 3263, 3264)
SIP supported in NAT networks [including STUN (RFC 3489)]
Message Waiting Indicator (RFC 3842)
Voice algorithms:
- G.711 (A-law and μ-law)
- G.7231 high/low
- G.729a/b
- G.722.1
- G.726
Dual-Tone Multi-Frequency (DTMF), In-Band and Out-of-Band (RFC 2833)
(SIP INFO)
Voice Activity Detection (VAD) with Silence Suppression
Adaptive Jitter Buffer Management
Comfort Noise Generation
Echo Cancellation Message
Provisioning, Administration,
and Maintenance
Integrated web server provides web-based administration and configuration
Telephone keypad configuration via display menu/navigation
Automated provisioning and upgrade via HTTPS, HTTP, TFTP
User Authentication for configuration pages
Local and Remote Syslog (RFC 3164)
SNTP Time Synchronization
TR069
Features