SIP trunking, which takes its name from the SIP (Session Initiation Protocol (News
)) directly connects corporate IP PBXs (or IP-enabled legacy PBXs) over broadband IP data networks. Such a communications scheme saves organizations a considerable amount of money, since Voice-over-IP phone calls are never routed through the, older, more expensive Time-Division Multiplexed PSTN. Everything from enterprises to SMBs (Small To Mid-Sized Businesses) are continuing the adopt VoIP in conjunction with SIP trunking services so that they can benefit from both lower costs and even multimedia capabilities of the SIP protocol to extend their communications between business partners, suppliers and customers.
And now, firewall technology vendor Ingate Systems
Corporation, one of the venerable names in multimedia and signal processing hardware and software, have announced that they have concluded joint testing validating the Dialogic 2000 Media Gateway (News
) Series (DMG2000
) as being interoperable with Ingate SIParator
and Ingate Firewall
products. Combining a DMG2000
gateway and an Ingate SIParator or Ingate Firewall allows enterprises leveraging legacy PBX (News
) and contact center systems to easily and securely adopt SIP trunks as a replacement for conventional PSTN voice services.
Rather than simple undergo a massive “forklift upgrade” and completely migrate from PSTN service to a SIP-enabled IP-PBX system (as is the case when many SIP trunking providers and resellers influence SMBs and other organizations), many enterprise-class customers nevertheless maintain legacy non-SIP PBX and contact center systems. These types of organizations should find attractive the combined security features of the Ingate SIParator with the SIP-to-PBX trunk conversion capability of a DMG2000 gateway, which enables a cost-effective, secure and reliable SIP trunk interface when deployed on the customer premises to support a SIP trunking service.
With this interoperability solution, both Ingate and Dialogic (News
) products are deployed on the customer premises to support the SIP trunking service. The Ingate products are deployed at the network edge between a wide area IP network and the corporate LAN, securely passing SIP signaling and VoIP media streams to and from the corporate LAN. The Dialogic gateway resides on the corporate LAN and is connected to the legacy PBX or contact center via traditional T1/E1 trunk ports. The DMG2000 gateway passes the SIP Trunk signaling and media from the Ingate SIParator to the PBX by emulating traditional PSTN trunk services.
Richard Grigonis is Executive Editor of TMC (News - Alert)�s IP Communications Group. To read more of Richard’s articles, please visit his columnist page.
Edited by Stefania Viscusi