FIRMWARE 1.0.3.4 GXW4248 USER MANUAL PAGE 13 OF 54
GXW4248 FEATURES
The GXW4248 is a next generation IP voice gateway that is interoperable and compatible with leading IP-
PBXs, Soft switches and SIP platforms. The GXW4248 FXS gateway is auto-configurable, remotely
manageable and scalable. The GXW4248 offers superb voice quality, traditional telephony functionality,
easy deployment, and 48 FXS ports. Each model features flexible dialing plans, integrated call routing to
support a pure IP network call and an external power supply.
SOFTWARE FEATURES OVERVIEW
• 48 FXS ports
• RJ-45 Ethernet ports
• 4 configurable SIP profiles
• Supports Voice Codecs:
G711(a/µ, Annex I & II), G723.1A, G726 (ADPCM with 16/24/32/40 bit rates), G729 A/B, 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 3: GXW4248 SOFTWARE FEATURES
48 FXS ports
48 SIP accounts, 4 profiles
10/100/1000 Mbps, RJ-45
Number of Concurrent
Calls (except when using
SRTP)
48 Concurrent Calls
Voice over Packet
Capabilities
Voice Activity Detection (VAD) with C
NG (comfort noise generation) and PLC (packet
loss concealment), LEC with NLP Packetized Voice Protocol Unit (supports
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