ZyXEL Communications P-2002 - Manual (Page 108)

P-2002 Series User’s Guide
108 Appendix A
Table 42 Feature Specifications
Voice Functions SIP (RFC 3261) version 2
SDP (RFC 2327)
RTP (RFC 1889)
RTCP (RFC 1890)
G.168 Echo Cancellation
VAD (Voice Activity Detection)
Silence Suppression
CNG (Comfort Noise Generation)
VLAN tag support
QoS Supports TOS and Diffserv Tagging
RTP Voice Highest Priority
Codec: G.711 (PCM), G.729 (ADPCM)
Loop Start Signaling Support
Modem and Fax Tone Detection and Pass Through
DTMF Detection
Multiple SIP number supports
Multiple Channel Supports
T.38 Fax Relay
Point to Point Calling (Direct IP to IP Calling)
Speed Dial (Phonebook)
Lifeline Support (P-2002L)
Support NAT Traversal / RFC3489- IETF Simple Traversal of UDP Through
NAT (STUN)
Caller ID
Dialing Type: Tone, Pulse (Auto detection)
Ring cadence frequency can be tuned by firmware
Tip/ring polarity reversal
Call Features Call Waiting (CW) w/ caller ID
Call Forwarding (unconditional/busy/no answer)
Call Transferring (blind/consult/on hold/attendant)
Three way conference call with local mixing
CLIP (Calling Line Identification Presentation)
CLIR (Calling Line Identification Restriction)
Call Hold/Retrieve/Block
Incoming Call Policy (Accept/Forward/Block)
Second Call
Internal Call
Flash Hook Timer
Caller Ringing Tone (Early Media)
On Hold Tone
Message Waiting Indicator (RFC 3824), Visualized MWI, MWI by e-mail
IVR (Interactive Voice Response)
Custom Tones (IVR) 127 seconds total memory time, 20 second maximum per tone