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9 Nov 2010 | Robert Long | No Comments | 1,475 views | Categories: Technology, Unified Communications

Designing for emergency calls is an important part of implementing a Unified Communications system.  In Canada and the United States, a system has been implemented to assist Emergency Telecommunicators (“dispatchers”) handling emergency calls. The system is called Enhanced 9−1−1 (e911).  This system allows dispatchers to identify where the emergency call is originating from.  For the […]

1 Nov 2010 | Robert Long | No Comments | 805 views | Categories: Cisco, CUCM, Technology, Unified Communications

If you’ve taken a Cisco Unified Communications Manager course with me, then you’ve heard me say 80% of your CUCM problems can either be created or solved with partitions, calling search spaces, and translations. Let’s put that axiom to the test by addressing two common feature requests: system-wide and group speed dials. To start off, let’s […]

28 Oct 2010 | Robert Long | No Comments | 1,007 views | Categories: Cisco, Cisco Unity, Technology, Unified Communications

Perhaps as exciting as tile and grout cleaning are conference calls which drone on and on for hours.  (If you’ve been on one with me recently, I assure you I’m not talking about that call.)  It’s easy to see how details can be overlooked and simply forgotten while you’re updating Facebook, er, uh, “temporarily distracted.”  […]

21 Oct 2010 | Robert Long | No Comments | 10,511 views | Categories: Security, Technology, Unified Communications
Enabling UC Teleworkers

Unified Communications (UC) systems have done a lot to enable teleworking.  While physically located at someone’s residence, an IP phone can be logically connected to the corporate network and therefore place and receive calls as it were in the office.  Some organizations are able to obtain quantity discounts which make it possible to have MPLS […]

18 Oct 2010 | Robert Long | 3 Comments | 924 views | Categories: Cisco, CUCM, Technology, Unified Communications

One of the new features available in Cisco UCM 8.x is Extension Mobility Cross Cluster. With this feature, a user who has a device profile on one cluster can log into a phone controlled by a different cluster. Many customers were quite pleased when this feature became available.  This feature definitely works when the person moves from […]

6 Oct 2010 | Robert Long | No Comments | 894 views | Categories: Cisco, CUCM, Technology, Unified Communications
Finding Cisco UC Documentation

We’ve all been there — you’re staring at a configuration screen wondering exactly what that field is for, or you’re in the middle of setting up a feature and cannot remember what else needs to be done. There’s plenty of documentation available, but it helps if you know where it is. To begin with, most fields in CUCM […]

27 Aug 2010 | Robert Long | No Comments | 890 views | Categories: Cisco, Technology, Unified Communications
Controlling Public Space Phone Access

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?

17 Aug 2010 | Robert Long | One Comment | 1,656 views | Categories: Cisco, CUCM, Technology, Unified Communications

I recently came across an opportunity to use a relatively new feature in Cisco Unified Communications Manager (CUCM). Suppose you are the telecom administrator at a community hospital. During business hours, the Facilities Department is staffed and team members simply call the office to report facilities issues. After hours though, the office is unstaffed and […]

5 Aug 2010 | Robert Long | No Comments | 1,171 views | Categories: Cisco, Technology, Unified Communications
Traffic Engineering in Brief

Anytime we’re working on a VoIP deployment, we need to ensure the network is able to support the new application. In addition to obvious requirements including quality of service (QoS), power over Ethernet (PoE), and security planning, it may be advisable to do a bit of traffic engineering. The end product of the traffic engineering […]

28 Jul 2010 | Robert Long | No Comments | 939 views | Categories: Cisco, Technology, Unified Communications
Alternative Site-to-Site Dialing Scheme

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.