| Product Model |
Grandstream GXW4108 |
| Product Type |
Enterprise Analog VoIP Gateway |
| FXO Ports |
8 × RJ11 FXO ports |
| Network Interfaces |
2 × 10/100 Mbps RJ45 Ethernet ports |
| IP Signaling |
SIP (RFC 3261) |
| SIP Profiles |
Up to 2 SIP server profiles |
| SIP Accounts |
Independent SIP account per FXO port |
| Voice Codecs |
G.711, G.723, G.726, G.729A/B/E, G.728, iLBC |
| Echo Cancellation |
G.168-compliant Echo Cancellation |
| Voice Features |
Dynamic Jitter Buffer, Modem Detection and Auto-Switch to G.711 |
| Fax Support |
T.38 Group 3 Fax Relay up to 14.4 kbps + G.711 Pass-through |
| PSTN Failover |
PSTN failover during power failure |
| DTMF |
In-audio, RFC2833 and/or SIP INFO |
| Caller ID |
Bellcore Type 1/2, ETSI, BT, NTT and DTMF-based CID |
| QoS |
DiffServ, ToS and 802.1p/Q VLAN Tagging |
| IP Transport |
RTP / RTCP |
| Security |
SRTP |
| Provisioning |
TFTP and HTTP |
| Management |
Syslog, HTTPS, Telnet and Web Browser |
| Power Supply |
Input: 100–240 VAC, 50/60 Hz; Output: 12 VDC |
| Mounting |
Wall Mount / Desktop |
| Dimensions |
230 × 135 × 35 mm |
| Operating Temperature |
0°C to 40°C |
| Humidity |
10%–90%, non-condensing |
| Key Benefit |
Connects up to 8 traditional PSTN analog lines to an IP-PBX/VoIP environment with PSTN failover and SIP support |
