ApplianX IP Gateway is an easy to deploy, standards-based SIP to TDM gateway, often installed within an enterprise or service centre. It can be used to bridge between an internal VoIP or packet-switched telecoms network and the external PSTN, a PBX or private circuit switched network – helping reduce operational costs, extend the life of existing TDM-based equipment and advantage to be taken from new IP-based services and endpoints.
Telephone network interfaces
On the PSTN side, ApplianX IP Gateway provides 1, 2, 4 or 8 universal T1/E1 (USA, Japan, Europe and worldwide) interfaces, with a wide range of per-circuit selectable signalling protocols, including PRI/ISDN types, T1 robbed bit and E1 CAS, R1, R2 and DTMF, plus many PBX inter-working protocols, such as Q.SIG and DPNSS.
IP Interfaces
On the IP side, ApplianX IP Gateway provides dual-redundant traffic interfaces for SIP signalling, with RTP voice. Within the RTP stream there is support for G.711, G.723.1, G.726, G.729AB and GSM-FR codecs. Stand-alone it can provide the essential functions of a SIP proxy and registrar, but will also support the use of an external SIP proxy and registrar. ApplianX IP Gateway also supports access to an external RADIUS server, allowing integration into centralised authorisation and authentication strategies, and the production of call data records**.
Traffic routing
Controlling traffic between IP and TDM is a comprehensive call routing engine, allowing configuration of a variety of routing strategies: implementing and routing upon trunk groups; editing to construct SIP addresses from DDI (DID) digits; and strategies for handling call progress information.
Comprehensive management
A private (non-traffic) Ethernet port gives access to the integral HTTP server and provides an HTML web browser interface with separate password protected access levels, to allow configuration, administration, and traffic monitoring and diagnosis. A comprehensive set of SNMP facilities (including traps) provide management facilities within a traditional network management environment.
Features and benefits
| This deployment-ready solution, which can bridge between various TDM and IP endpoints, comes with a comprehensive management suite including: an HTML web browser configuration tool; support for SNMP; and access to external RADIUS server |
Utilises familiar interface tools making ApplianX IP Gateway easy to install, configure, maintain and manage |
| Extensive portfolio of worldwide protocols supported including: PRI/ISDN types; T1 robbed-bit; E1 CAS; R1; R2; AT&T, NI2, and DTMF |
ApplianX IP Gateway will support the protocol needed to connect to the TDM network, wherever it is installed in the world |
| Comprehensive support for many PBX inter-working protocols, such as Q.SIG and DPNSS |
Allows investment in legacy equipment such as PBXs to be protected, they can remain in service while new IP-based services and endpoints can be taken advantage of |
| Broad range of voice codecs supported including; G.711, G.723.1, G.726, G.729AB |
You have the flexibility to trade between voice quality and network bandwidth |
| Controlling traffic between IP and TDM is a comprehensive call routing engine |
You have complete control over the routing strategies used to connect your IP network to the PSTN or PBX |
| Dual IP traffic interfaces, hot swap power supplies, RAID arrays, or where possible use of reliable solid-state Flash memory |
Resilience and robustness is assured by the use of replicated facilities in areas that are critical, or traditionally prone to failure |