Grandstream GXW4248 VoIP
30.625.000 ₫
(*) Giá chưa bao gồm thuế VAT
- 48 telephone FXS ports with both RJ11 and 50-pin Telco connectors, as well as per port LED
- Gigabit Ethernet and a backlit 128×32 graphic LCD display with support for multiple languages
- 2 SIP server profiles per system and independent SIP account per port
- Supported voice/fax codecs include G.711, G.723.1, G.726, G.729A/B, iLBC, T.38 Fax
- Advanced carrier grade 128ms-tail-length line echo cancellation
The Grandstream GXW4248 is a next generation high performance high-density VoIP gateway that is fully compliant with SIP standards and broadly interoperable with various VoIP systems, analog PBX and phones on the market. The GXW4248 features 48 FXS analog telephone ports, superb voice quality, rich telephony functionalities, easy provisioning , flexible dialing plans, advanced security protection, and excellent performance in handling high volume voice calls.
The Grandstream GXW4248 analog gateway offers small-to-medium businesses a cost-effective hybrid IP and analog telephone system that allows them to enjoy the benefits of VoIP communications while preserving investment on existing analog phones, fax machines and legacy PBX systems.
Features
- 48 telephone FXS ports with both RJ11 and 50-pin Telco connectors, as well as per port LED
- Gigabit Ethernet and a backlit 128×32 graphic LCD display with support for multiple languages
- 2 SIP server profiles per system and independent SIP account per port
- Supported voice/fax codecs include G.711, G.723.1, G.726, G.729A/B, iLBC, T.38 Fax
- Advanced carrier grade 128ms-tail-length line echo cancellation
- Over-voltage and over-current protection (ITU-T K.21 Basic Test Level)
- Support VMWI, NEON LED and stutter tone for message waiting indication
- Automated provisioning using TR-069 or AES encrypted XML configuration file; TLS/SRTP/HTTPS for advanced security and privacy protection
Specifications
| FXS Ports | 48 FXS |
| Ethernet Ports | 1 RJ45 10/100Mbps RJ45 |
| PSTN Line Port | 2×50-pin Telco connectors |
| LED indicators | LAN Link, LAN Activity, Connection Per Telephone Port |
| LCD display | Backlit 128 x 32 graphic LCD display with support for multiple languages |
| Voice Compression | G.711, G.723.1, G.726 , G.729 A/B, iLBC |
| Fax over IP | T.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax pass-through, Fax data pump V.17, V21, V.27ter, V.29 for T.38 fax relay |
| Telephony Feature | Caller ID display or block, call waiting, blind or attended call transfer, call forward, do not disturb, 3-way conference, last call return, paging, message waiting indicator LED (NEON LED) support and stutter tone, auto dial |
| QoS | DiffServ, TOS, 802.1P/Q VLAN tagging |
| Network Protocols | TCP/ UDP, RTP/ RTCP, HTTP/ HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN, LLDP (pending) |
| DTMF Method | Flexible DTMF transmission methods including In-audio, RFC2833, and/or SIP INFO |
| Signaling | SIP (RFC 2361) over UDP/ TCP/ TLS |
| SIP Server Profiles & Accounts Per System | 4 distinct SIP server profile per system and indepentent SIP account per telephone port |
| Security | Support for SRTP, TLS/ SIPS, HTTPS, 802.1x |
| Management | Syslog, HTTPS, Web brower, voice prompt, TR-069 |
| Power Input | Input: 100 ~ 240VAC, 50 ~ 60Hz
Output: 12 VDC, 5A |
| Compliance | FCC, CE |
| Dimension | 440 x 255 x 44 mm |
| Weight | 3.21 kg |
