Zyxel IES-1000 EE [249/368] Voip features

Zyxel IES-1000 EE [249/368] Voip features
Chapter 33 Product Specifications
VOP1224-61 User’s Guide
249
33.2 VoIP Features
This section lists the VOP’s additional VoIP features.
Table 101 VoIP Features
Other Features SIP keep alive
•Numbering plan
CLIP and CLIR
•Country code
GR909 Metallic Line Test (MLT)
SIP and RTP statistics generation
Ringer Output
Amplitude
Adjustable (35 ~ 80 Vrms)
Output Ringing
Frequency
Adjustable (16.7 / 20 / 25 / 50 Hz)
Total Ringing Output
Power
Maximum 12W
Digital signal
processing features
•RTP encapsulation
Supported voice codecs:
G.711 A-law
G.711 µ-law
G.723.1
G.726 (16, 24, 32, 40 kbps)
G.729 (G.729A and G.729B)
T.38 fax / modem passthrough (G.711 only)
•V.21 fax tone detection
FSK Caller ID generation
DTMF detection and relay
DTMF Caller ID generation
G.168 echo cancellation
Silence detection and suppression
Comfort noise generation
Voice activity detection
Billing signal generation (12 / 16 kHz metering tone)
Tone generation:
Dial tone
Busy tone
Congestion tone
Ringback tone
Waiting tone
Howler tone
Packet loss concealment

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