BIG 5544
ISDN VoIP gateway
with 4 ISDN S0 and 2 analogue RJ11 (FXS) ports
The BIG 5544 ISDN VoIP gateway links ISDN equipment, e.g. ISDN PBX, and analogue telephones to the IP world offering cost-effective communication with a superior quality of service. 4 ISDN S0 ports are available to connect ISDN voice and data equipment to the IP network. Additionally, 2 RJ11 (FXS) ports can be used to plug in analogue equipment. With up to 8 simultaneous connections the BIG 5544 provides a powerful solution for small businesses and call centres. By cascading two BIG 5544 gateways the number of ISDN S0 ports, RJ11 ports and VoIP channels can be doubled. The BIG 5544 supports legacy services, managed IP services and IP Centrex applications.
- 4 ISDN S0 ports
- 2 analogue RJ11 (FXS) ports
- Up to 8 ISDN access sockets
- Up to 8 simultaneous conncetions
- Point-to-Multipoint mode for ISDN phones
- Point-to-Point mode for ISDN PBX systems
- T3/T4 clocking port for synchronisation of cascaded BIG 5544
- Support of legacy and managed IP services
- Support of IP Centrex applications
- Gigabit Ethernet WAN port
- 3 Gigabit Ethernet LAN ports
- Management: CLI via Telnet/SSH, SNMPv3, TR-069
- Signalling: SIP, SIP Trunking
- Audio codecs: G.711, G.726, G.729, G722 etc.
- Fax over IP (T.38, G.711)