|
|
Device profile: Zultys MX1200 PBX
2003-04-02
A new Linux powered media exchange server from Zultys Technologies (Sunnyvale, CA) combines the functions of a traditional enterprise telephone PBX (private branch exchange) along with those of an Internet gateway, switch, and router -- all within a single 2U 19-inch rackmount form-factor.
![]() The MX1200 was designed to be highly scalable, and allows expanding from 25 to 1200 users without requiring additional hardware. The system is based on the combination of four IBM PowerPC 440GP processors equipped with twenty-eight 10/100 Mbps Ethernet ports and eight analog circuits, and it runs an embedded Linux operating system that was developed using MontaVista Linux Professional Edition. The device supports SIP (Session Initiation Protocol), the protocol now widely recognized as the standard for IP telephony. Functions provided include a SIP registrar, user agent client, user agent server, and presence server, and the unit can be connected to any standard SIP phone or SIP softphone, including the Linux-powered Zultys ZIP 4x4 IP phone. MX1200 features and functions are said to include . . .
MontaVista's preemptible kernel patch and real-time scheduler, reputation, and PowerPC 440GP support were key factors in selecting the product's embedded operating system, according to Zultys president Iain Milnes. "We considered several proprietary embedded RTOSes, but concluded that we could save development time and costs using Linux, and were also able to take advantage of available open source software code," said Milnes. Zultys also used Linux as the embedded operating system in its IP phone, the ZIP 4X4.Related stories:
|