GXW400X FEATURES
The GXW4000 series is a next generation IP voice gateway that is interoperable and compatible with
leading IP-PBXs, Softswitches and SIP platforms. The GXW4000 series FXS gateway is auto-configurable,
remotely manageable and scalable. The GXW4000 series gateways come in two models - the GXW-4004
and GXW-4008, each offering superb voice quality, traditional telephony functionality, easy deployment,
and 4 and 8 FXS ports respectively. Each model features flexible dialing plans, integrated call routing to
support a pure IP network call and an external power supply.
Software Features Overview
4 or 8 FXS ports
Two RJ-45 ports (switched or routed)
Multiple SIP accounts & profiles (4,8 / configurable through 2 profiles)
Supports Voice Codecs:
o G711(a/µ, Annex I & II), G723.1A, G726 (ADPCM with 16/24/32/40 bit rates), G729 A/B/E,
iLBC
T.38 Fax
Comprehensive Dial Plan support for Outgoing calls.
G.168 Echo Cancellation
Voice Activation Detection (VAD), Comfort Noise Generation (CNG), and Packet Loss Concealment
(PLC)
Supports PSTN/PBX analog telephone sets or analog trunks
Table 4: GXW400X software features
Voice Activity Detection (VAD)
with CNG (comfort noise
generation) and PLC (packet loss
concealment), AEC with NLP
Packetized Voice Protocol Unit
Voice Activity Detection (VAD) with
CNG (comfort noise generation)
and PLC (packet loss
concealment), AEC with NLP
Packetized Voice Protocol Unit