Welltech LP-389 v.1.06 Operation Guide - Manual (Page 8)

8
IPv6 Auto Configuration (RFC 4862)
MAC Address (IEEE 802.3)
Static IP
DHCP Client (RFC 2131)
PPPoE
DNS Client
TCP/UDP (RFC 793/768)
RTP/RTCP (RFC 1889/1890)
IPV4 ICMP (RFC 792)/IPV6 ICMP(RFC 4443)
TFTP Client
VOIP VLAN Support (802.1q/802.1p)
HTTP/HTTPS Server
QoS Support
Support IPV4 only, IPV6 only or dual stack mode
SIP Protocol
RFC3261 compliance
Support up-to 3 SIP Register Accounts (IPV4/V6 selectable)
Support Primary and Backup Proxy
SIP UDP Protocol
Support SIP compact Form
SIP Session Timer (RFC 4028)
MD5 Digest Authentication
Reliability of provisional responses PRACK (RFC3262)
Early/Delay media support
Offer/answer (RFC3264)
Message Waiting Indication (RFC3842)
Event Notification (RFC3265)
REFER (RFC3515)
Support DNS SRV to locating SIP Server (RFC 3263)
Support STUN NAT Traversal
Support “rport” parameter (RFC 3581)
Audio
G.711 A-law, μ-law
G.723.1 (6.3K/5.3K)
G.729A
GSM 6.10 (full rate)
Silence Suppression
VAD/CNG
Automatic Gain Control
In-band/out of band DTMF (RFC 4733 (RFC 2833)/SIP INFO)
Adaptive/Configurable Jitter Buffer
Acoustic Echo Cancellation
Volume Adjustment