In our previous post, we introduced changes in Office Communications Server to enable Direct SIP with IP-PBX such as Cisco Call Manager. In this simple example, we provide a configuration of Direct SIP with Cisco Call Manager 4.2.1. Read More

With the hotfixes released in August 2008, Microsoft is significantly improving the capability for Office Communications Server 2007 to exchange calls with SIP-based IP-PBX, in particular from Cisco. As a consequence, Microsoft now supports OCS deployments in Direct SIP with IP-PBX between Office Communications Server and specific versions of Cisco Call Manager. This change gives administrators the possibility to set up Office Communications Server so that it can directly interoperate with IP-PBX using E.164 globally routable telephone numbers without RFC3966’s mandated “+” prefix. Additionally, Office Communications Server will now be able to interoperate with IP-PBX within a private dialing plan, exchanging locally routable private numbers. Read More

In early 2007, Cisco was touting their three year lead on Microsoft in UC.  Now, Cisco seems to have decided they were running in the wrong direction - and perhaps even in the wrong race. In the last month, Cisco has added two new software pieces Read More

If you just want to try Communicator Mobile 2.0 without installing it on your Windows Mobile device, you can use a device emulator running on your desktop computer (or even running the emulator in a Virtual PC on your desktop machine J). This guide Read More