Key words:4 FXO +4 FXS ports, TI chipset,Supports Audio Codecs: G711U/A,G723, G729A/B, T.38 compliant

GNEX-6108 has 4FXO ports, Based on SIP standard, can be connected to 4PSTN lines.

Features:
● 4FXS and 4FXO port media gateways;
● External power supply 
● Two RJ-45 ports 10/100 Mbps (switched or routed)
● TFTP and HTTP firmware upgrade support
●  Multiple SIP accounts (choice of 2 profiles per account)
●  Programmable PSTN line settings for different countries/regions
●  1 or 2 stage dialing
●  Caller ID
●  G.168 - echo cancellation
●  T.38 and PSTN pass through
●  Flexible DTMF transmission: In Audio, RFC2833, SIP Info or any combination of the 3

Specifications:
Ethernet Ports: 2 RJ45
NAT/Router: Yes
DHCP: Client
FXS Port: 4
FXO Port: 4
PSTN Pass-through Port: No
Voice Mail Indicator: No
Voice Codec: G.711(a/law),G.723, G.729A/B, G.726, T.38
Remote Configuration: TFTP/HTTP