Grandstream Networks GXW400X User Manual

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GXW400X User Manual
(supports RTP and AAL2
protocol), G.168 compliant Echo
Cancellation, Dynamic Jitter
Buffer, Modem detection & auto-
switch to G.711
(supports RTP and AAL2 protocol),
G.168 compliant Echo
Cancellation, Dynamic Jitter Buffer,
Modem detection & auto-switch to
G.711
PSTN Fail-over
PSTN failover port on power
failure
PSTN failover port on power failure
Voice Compression
G.711 + Annex I (PLC), Annex II
(VAD/CNG format) encoder and
decoder, G.723.1A,
G.726(ADPCM with 16/24/32/40
bit rates), G.729A/B/E, iLBC
G.726 provides proprietary VAD,
CNG, and signal power
estimation, Voice Play Out unit
(reordering, fixed and adaptive
jitter buffer, clock
synchronization), AGC (automatic
gain control),
Status output, Decoder
controlling via voice packet
header
G.711 + Annex I (PLC), Annex II
(VAD/CNG format) encoder and
decoder, G.723.1A, G.726(ADPCM
with 16/24/32/40 bit rates),
G.729A/B/E, iLBC
G.726 provides proprietary VAD,
CNG, and signal power estimation,
Voice Play Out unit (reordering,
fixed and adaptive jitter buffer,
clock synchronization), AGC
(automatic gain control),
Status output, Decoder controlling
via voice packet header
DHCP Server/Client
Yes, NAT Router or Switched
Mode
Yes, NAT Router or Switched Mode
Fax over IP
T.38 compliant Group 3 Fax Relay
up to 14.4kpbs and auto-switch to
G.711 for Fax Pass-through,
Fax Datapump V.17, V.19, V.27ter,
V.29 for T.38 fax relay
T.38 compliant Group 3 Fax Relay
up to 14.4kpbs and auto-switch to
G.711 for Fax Pass-through,
Fax Datapump V.17, V.19, V.27ter,
V.29 for T.38 fax relay
QoS
Diffserv, TOS, 802.1 P/Q VLAN
tagging
Diffserv, TOS, 802.1 P/Q VLAN
tagging
Transport Protocol
RTP
RTP
DTMF Method
In-audio, RFC2833, and/or SIP
Info
In-audio, RFC2833, and/or SIP Info
IP Signaling
SIP (RFC 3261)
SIP (RFC 3261)

Grandstream Networks GXW400X Specifications

General

Brand	Grandstream Networks
Model	GXW400X
Category	Gateway
Language	English