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Posted: 3/25/2013
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Türk Telekom Türk Telekom Group Replaces Openwave Messaging with Microsoft Exchange Server 2013

Türk Telekom Group is a full-service communications and convergence technologies provider in Turkey. The company’s 2,000 retail salespeople used Openwave Messaging to communicate with the corporate office, but the solution was difficult to manage. When Türk Telekom learned about Microsoft Exchange Server 2013, it deployed the solution to help reduce administration, provide high availability, and offer improved messaging capabilities to employees.

Business Needs
Headquartered in Ankara, Turkey, Türk Telekom is an integrated telecommunications and technology services provider that offers a combination of fixed-line, mobile, data, and Internet services. Its fixed broadband network covers 1.26 million homes. For corporate customers, Türk Telekom introduced the “BIZ” concept as a joint offering by Türk Telekom, TTNET, and Avea, its mobile services provider, which serves more than 13 million subscribers.

Türk Telekom employees primarily use email to communicate across the organization. At its corporate offices, the company relies on Microsoft Exchange Server 2010 for messaging and has deployed more than 30,000 mailboxes on the solution. In addition to corporate offices, the company also maintains hundreds of retail locations for individual and business consumers across Turkey. The 2,000 salespeople who work at the company’s retail locations used POP and SMTP mail through Openwave Messaging to share sales data with managers at corporate offices.

Türk Telekom had deployed Openwave on expensive servers without any redundancy for high-availability. “Our administrators are familiar with the Microsoft platform, because that is what we use for most of our enterprise solutions,” explains Orhan Allı, Messaging Systems Team Leader at Türk Telekom. “We frequently encountered issues with Openwave, and the support was unresponsive. We were afraid to touch it.” Türk Telekom also felt its users could benefit from increased mobility and collaboration options.

When Türk Telekom learned about the Rapid Deployment Program for Microsoft Exchange Server 2013, it decided to join to understand how the solution could help simplify its messaging environment while providing more robust messaging capabilities for all employees.

Türk Telekom deployed Exchange Server 2013 in its existing Windows Server 2008 R2 Hyper-V environment. It is running two mailbox servers and two Client Access servers. It also deployed the Exchange Server 2010 Edge Transport server role for additional security against viruses and spam. For redundancy, it has configured the mailbox servers in a database availability group with two database copies. For backup, it also relies on the Data Protection Manager component of Microsoft System Center 2012.

* With Exchange Server 2013, we have redundancy at the database, server, and backup levels, so we can ensure much higher service levels. *

Orhan Allı
Messaging Systems Team Leader, Türk Telekom Group

The IT team used the Exchange Management Shell, which is built on the Windows PowerShell command-line interface, to complete tasks for the deployment, such as creating mailboxes and distribution lists and setting up accounts. The IT Team is also using the Exchange Administration Center, a browser-based management tool that can be accessed over the Internet, to manage mailbox servers. To delegate tasks, the IT team defined administration roles using Role Based Access Control. “We have created groups and enabled rights for everything from moving mailboxes to password reset or creating distribution lists,” says Abdurrahim Gök, Senior Messaging Administrator at Türk Telekom.

Türk Telekom created two domains, one for salespeople working in consumer retail and another for corporate sales. All 2,000 salespeople have 1 gigabyte (GB) mailboxes. It is using data loss prevention (DLP) capabilities designed to keep employees from sending sensitive sales data outside the company.

Employees use Microsoft Outlook 2010 or Microsoft Outlook Web App to manage email, calendars, contacts, and tasks. Mobile employees use Exchange ActiveSync to access the same information from their mobile phones. Now salespeople and managers at corporate can share calendars and contact information to arrange meetings and conference calls. Gök adds, “We really like the offline access feature in Outlook Web App, because some of our retail locations have slow Internet connections.” Employees can view messages, meeting reminders and calendars, and contacts when they are offline.

By replacing its Openwave Messaging solution with Exchange Server 2013, Türk Telekom can ensure availability, simplify administration, and help salespeople communicate better with managers.

  • Provide highly available messaging. By using database availability groups, Türk Telekom has automatic recovery from failures such as database-level failures. “With Exchange Server 2013, we have redundancy at the database, server, and backup levels, so we can ensure much higher service levels,” says Allı.

  • Simplify administration. One way Türk Telekom simplified administration was by deploying Exchange Server 2013 in an existing virtual environment and retiring the existing hardware. By using the Exchange Administration Center, the IT team can manage servers through a browser on most any computer with an Internet connection. “Administration for Exchange Server 2013 is much easier. Our IT team has had great experiences with other Exchange Server deployments and we can leverage that knowledge,” explains Gök.

    He continues, “We save a lot of time with Role Based Access Control, because we can delegate tasks to the right teams. That helps more senior IT staff focus on the business.”

  • Improve communication. “Sharing calendars and contacts in Outlook or Outlook Web App is huge,” says Gök. “Managers can easily see who is available, connect sales with customers, or schedule meetings to discuss sales strategy.”

  • Enable anywhere access. Employees can access email and calendars through Outlook Web App from multiple devices, and they can use offline access to continue working when they have no or low-bandwidth connections. “With Openwave, people had no mobile access to email at all,” says Gök. “Now our retail salespeople have many ways to access email and calendars, even offline.”

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Solution Overview

Organization Size: 37000 employees

Organization Profile

Based in Ankara, Turkey, Türk Telekom Group provides integrated telecommunication services from PSTN and GSM to broadband Internet. It employs more than 37,000 people.

Software and Services
  • Microsoft Exchange Server 2013
  • Microsoft Outlook 2010

Vertical Industries
Communications and Network Service Providers


Business Need
  • Business Productivity
  • Team Collaboration
  • Unified Communications
  • Data Protection and Recovery

IT Issue
Personal Productivity