The VPN gateway consists of SIP Proxy
1 and an application level gateway (ALG).
The network is made of SIP proxy
servers (SIP PS), application server (AS), data bases (DB), media resource functions (MRF) and IPv4 network of signalling information transmission.
Using a re-INVITE, mid-call mobility can be supported without having to go through an intermediate SIP proxy
, as shown in Fig.
Vadodara, Gujarat, March 7 -- Matrix IP-PBX is the integrated communication solution for small businesses and large enterprises encompassing advance features of SIP Proxy
, Registrar and Presence server and offering universal connectivity through PSTN, GSM, ISDN and IP networks.
It includes Internet connection load balancing and failover technology, a SIP Proxy
, SIP Registration Server and Network Address Translation (NAT) Proxy that allows SIP traffic to be load balanced and have real-time failover among multiple Internet connections.
SIP can make communications environments in contacts centers more reliable, secure and easy to manage, areas that are being addressed with Interactive Intelligence's new Interaction SIP Proxy
711; full hybrid VoIP/TDM capabilities without the use of an external gateway; full SIP proxy
server and registrar server support; up to ten full message sets for multiple language support; and expanded support for DNIS conferences.
The Proxy7 Signaling Gateway bridges the gap between VoIP networks and the PSTN with combined SIP Proxy
Server and SS7/C7 Signaling, enabling VoIP Providers to cost-effectively terminate SIP-based voice traffic onto the PSTN.
All HelloSoft VoIP products are standard compliant and have been tested for interoperability with commercial SIP proxy
servers and popular IP phones.
BandTel's N-Plus network is based on several pairs of DNS servers that direct the SIP calls to SIP Signaling Transfer Points (STPs), which in turn direct those SIP call on one of "N" SIP proxy
's in the BandTel SIP proxy
The solution provides an added layer of security for SIP proxy
servers, IP-PBXs, and real-time communications systems from market leaders and open-source vendors.
The softswitch, which integrates a complex SIP Proxy
component, can be readily integrated into existing infrastructure from leading vendors including Cisco, Nortel and others.