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Mitel Enhances Mobility with Dynamic Extension

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May 26, 2009

Mitel Enhances Mobility with Dynamic Extension

By Sandra M. Gustavsen, Analyst, T3i Group LLC

TelecomTactics Takeaway: Mitel (News - Alert) has launched a new marketing campaign, called Series X, which includes an enhanced version of the company’s Mitel Communications Director (MCD) call control software that runs on the Mitel 3300 Communications Platform (ICP) or on an industry-standard server from Sun, HP, or IBM (News - Alert). The forthcoming MCD version (due out in July 2009 with Release 10) embeds Mitel Dynamic Extension, a new license-activated call control capability for mobile employees that lets a user make and receive calls simultaneously to and from up to eight devices (internal or external to the 3300 ICP system), with seamless handoff between devices. A benefit to all mobile staff, Dynamic Extension is particularly appealing to small and mid-sized businesses (SMBs), since it is easy to administer and use (license activated, no additional software or hardware required). Dynamic Extension goes beyond competing vendors’ mobile twinning solutions that often support just one twinned device and that may offer a separate solution for Fixed/Mobile Convergence (WiFi/Cellular handoff). For more on IP PBX (News - Alert) systems and mobility options, visit

Mitel introduces Dynamic Extension, a license-activated call control capability for mobile employees. The new capability is embedded within the Mitel Communications Director (MCD) call control software that runs on the Mitel 3300 Communications Platform (ICP) or on an industry-standard server from Sun, HP or IBM. Mobile staff can make and receive calls from anywhere on any of eight defined devices, as if they are in the office, maintaining their corporate identity (single number reach) and being always accessible to customers and colleagues (business continuity and first call resolution). In addition, Dynamic Extension means costs savings in terms of cellular charges. Cellular long distance charges are reduced, since long distance calls can route through the corporate communications system at lower rates.
Mitel explains that Dynamic Extension introduces two capabilities that are new for Mitel users: Personal Ring Groups and External Hot Desking. It is the Personal Ring Groups (PRGs) that allow the user to define up to eight devices, which appear to an outside party as the user’s office extension, but which can also take advantage of Mitel IP PBX calling features (transfer, conferencing, etc.). The user enters up to eight phone numbers in their Personal Ring Group; these can be internal numbers (extension numbers or direct dial numbers, for example) or external numbers, such as a home number or mobile phone number. The application uses External Hot Desking to extend call control and the user's identity and presence to any devices that are external to the 3300 ICP network. Once on a call, the user can seamlessly transfer (push or pull) between the devices. For example, a user can answer a call on his/her desk telephone, then press a programmed handoff key on the telephone to ‘push’ this call to a mobile phone (defined in the PRG), as he leaves the office and continue the call over a cellular network.
  • Mitel Dynamic Extension has the following key advantages:
  • Fixed Mobile Convergence, dual-mode (cellular and WiFi (News - Alert))
  • Single mailbox
  • Hot Desk any device (internal or external to the 3300 ICP network)
  • No client software/server required
  • Push/pull (seamless call transfer among defined devices)
  • Eight devices defined, including a legacy phone or any mobile phone
Per engineering guidelines, Mitel recommends that PRGs represent no more than 50% of the lines on a single 3300 ICP system (e.g., 350 PRGs programmed simultaneously on a 700-user system). Additional capacities include eight PRG member devices, one PRG per primary line (eight PRGs for non-primary members), and 812 simultaneously ringing PRG member devices per Mitel MXe Server (292 per non-MXe Server).
Dynamic Extension adds to several other mobile options already available for Mitel customers, including Mobile Extension (requires blade or server), the WiFi solution from SpectraLink, Mitel Teleworker, Mitel UC clients and cordless phones. While all of these remain viable options, Dynamic Extension represents a forward-looking and simplified alternative for so-called road warriors and remote workers. Dynamic Extension and Mitel’s new server options (HP and IBM) will become available in July 2009 (Mitel 3300 ICP Release 10). A special introductory offer, the Series X Bundle, includes 10 Dynamic Extensions and 10 UC Desktop Express licenses for free with MCD until June 30, 2009.

Sandra M. Gustavsen, senior analyst for T3i Group, contributes her TelecomTactics column to TMCnet. To read more of Sandra’s articles, please visit her columnist page.

Edited by Erik Linask

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