To the extent practical, good design suggests that phones have only the minimum calling privileges necessary. But how do you handle conference room phones that serve multiple functions?

In a recent post, I brought up the question of how you dial from one site in an organization’s voice network to another. In the ideal world, each site would have a range of DID (direct inward dialing) numbers, those numbers would not overlap, and we could get by with what the customer determines is an acceptable number of digits in the directory numbers. Yeah, that would be nice. But it doesn’t always, or seldom does, work out that way. Sometimes we can, in fact, get to a point where the directory numbers do not overlap and still match their DID numbers, but it might require dialing seven digits for station-to-station calls.

I recently worked on a project involving a centralized four-site Unified Communications Manager (UCM) deployment. With any centralized deployment, it’s important to provide call processing redundancy at the remote sites. No doubt many, if not most, readers know Survivable Remote Site Telephony (SRST) provides this functionality. During the startup process, the phone downloads a configuration […]

A new feature arrived with CUCM 7.x and higher and that is the new ability to use the new globalized e.164 feature.  This feature is simply adding a + followed by the 1 to 3 digit country code, then the National Dialing code, and finally by the subscriber code. The + actually means the country’s […]

In this post, let’s see what the configuration parameters would be if we are using a CME router in the headquarters location and wanted to set up Unity voice mail support when the Unified Communication Managers are offline to continue voice mail operations. As a review on how ports are created in CUCM, one would […]

Last blog we looked at how we can use Trunk groups to ease the configuration of dial-peers and digit manipulation using analog FXO ports for an E911 solution. Now let’s take a look on how it can be used for T-1 CAS configurations and ISDN channel selection. The first example will be T-1 CAS configuration with […]

Cisco has introduced a method of integration with Microsoft Office Communicator (MOC) without the need to integrate a Cisco Presence Server with Microsoft Office Communicator Server. The product is called CUCiMOC [ed. note: pronounced “cookie-mock”] and it is an application which is simply installed on top of MOC client and enables the MOC users to seamlessly […]

Last post we looked at dial-peers and the syntax that is needed to address endpoints.  In this segment I want to explore the concept of creating destination-pattern that would be used on H.323 or SIP gateways to forward a call out of a POTS (Plain old Telephone System) port to the PSTN.  In order to […]

Cisco Unified Personal Communicator (CUPC) is a desktop application that allows users to communicate via voice, video, web conferencing, and presence. It allows users to check the availability of their contacts, search a corporate directory, collaborate via the web, use click-to-click dialing, and participate on video calls. CUPC can interact with a variety of servers and […]

Excerpted from the “Integrating the Cisco Unified Presence Server in Your Unified Communications Network” white paper. You can download the entire paper from our Knowledge Center. 1. Cisco Unified Presence Server (CUPS) – This is the brain of the Presence architecture and works in almost the same manner that the Cisco Unified Communications Manager (CUCM) […]