LAS VEGAS, June 16 /PRNewswire/ --

- Tellabs accelerates optical transport networks

NXTcomm08 -- Service providers need networks without speed limits. They
need unlimited bandwidth to deliver video, business and mobile services.
Simpler and more scalable Carrier Ethernet capabilities on the Tellabs(R)
7100 optical transport system (OTS) surpass networks' current speed limits.

Clear the road

Providers must upgrade existing transport networks and provide Carrier
Ethernet services to stay ahead of user needs. They need to cost-effectively
ensure carrier-class reliability, which means their networks must be
available 24 hours a day, 7 days a week. The new capabilities of the Tellabs
7100 OTS, including the Tellabs(R) 7100 Nano(TM) OTS, make deployments
simpler and more efficient -- with lower start-up costs.

-- ROADM DWDM optical network components formerly mandatory are now
       decoupled and are optional on the Tellabs 7100 OTS family. The
       Ethernet, SONET and SDH capabilities can be deployed without ROADM
       DWDM. This new flexibility enables simplified provisioning and reduced
       start-up costs for smaller applications, while maintaining the ability
       to easily and cost-effectively upgrade to ROADM DWDM support as demand
       increases. The on-ramp to the convergence highway has never been
       smoother.

    -- ITU-T Recommendation G.709 Optical Transport Network (OTN) based
       transport support will enable transparent high-capacity services.
       Providers can carpool their Carrier Ethernet, video, Storage Area
       Network, SONET and SDH services on a shared infrastructure, scaling
       capacity as needed.

    -- Additional new capabilities enable more traffic to travel along
       optical highway lanes. Enhancements to traditional Ethernet over 
       SONET/SDH transport enable a 20% increase in Gigabit Ethernet port 
       capacity, and support 10 Gigabit Ethernet ports as well. More traffic 
       on existing lanes improves service and network efficiency.



"These new capabilities of the Tellabs 7100 OTS enable our customers to
upgrade their networks quickly," said Mark Pashan, vice president and general
manager of optical transport products for Tellabs. "Ethernet services are
more flexible, and users receive more bandwidth exactly where it's needed as
network demands increase."

The new Tellabs 7100 OTS capabilities will help customers win the race to
advanced Carrier Ethernet services by the end of 2008.

About Tellabs

Tellabs advances telecommunications networks to meet the evolving needs
of users. Solutions from Tellabs enable service providers to deliver
high-quality voice, video and data services over wireline and wireless
networks around the world. Tellabs (Nasdaq: TLAB) is part of the NASDAQ
Global Select Market, Ocean Tomo 300(TM) Patent Index and the S&P 500.
http://www.tellabs.com

Tellabs and Tellabs logo are registered U.S. trademarks of Tellabs
Operations, Inc. in the United States and/or in other countries.

Web site: http://www.tellabs.com