An Asterisk-based PBX proved to be the solution to one enterprise's communications growing pains.

Asterisk is the most widely known open source PBX, but other developers are making competitive products in the unified communications market.

TELES, the Berlin-based VoIP and Next Generation Networks (NGN) telecoms solutions provider, has announced that it will be unveiling one of the first integrated mobile and VoIP gateways specifically created for the small enterprise market at this years CeBIT (News - Alert) event. TELES.VoIPBOX GSM is an integrated mobile and VoIP gateway box which can be added to analogue and IP environments for corporate customer access to both mobile and VoIP networks.

SysMaster VoIP PBX Phones

• GH.323 and SIP VoIP gateway
• Up to 120 PSTN and VoIP channels or 240 VoIP channels
• G723.1, G729A/B/AB, G726, GSM codecs
• Compatibility with Cisco, Lucent, Quintum, IP phones, soft phones

Introduction

VM 2100 is a full-featured IP-based telephone set for office telephony via Ethernet base communication. Over the office LAN connection, it provides VoIP PBX solution such as station-to-station call, IP call and local PSTN/PBX extension call via PSTN Gateway. The traditional PBX functionality is provided with H.450 features together with Gatekeeper or VoIP PBX Call Manager. Two 10/100BaseT embedded switch/hub RJ-45 ports allow connect to office LAN and PC on your table.

It is easily interface with ADSL/Cable Modem that is provided by ITSP, ISP or carrier company to provide VoIP services to residential and SOHO application. An integrated Analog Phone features provides IP call or PSTN call selection. Or to be a Plain Old Telephone set (POTs) when external power is failure.

Voice Over IP Technologies, Internet Telephony: Building the Converged Network