Mitel Networks Corp. announced Wednesday it has extended its suite of unified communications capabilities to the BlackBerry PlayBook tablet and will be demonstrating the capabilities at BlackBerry World 2011.

Building on the Mitel Freedom architecture announced last fall, Mitel has extended the Mitel Unified Communicator (UC) Advanced mobile portal to the BlackBerry PlayBook. In addition to providing remote access to corporate communications capabilities such as managing presence, viewing corporate contacts, call history and voice mail details, the application allows mobile workers to initiate phone calls directly on the BlackBerry PlayBook without interrupting their work flow. Using the employee’s BlackBerry smartphone, the application uses Mitel Mobility for BlackBerry MVS 5 to generate the call over available Wi-Fi or cellular networks.

Mitel is extending the Mitel Mobility for BlackBerry MVS solution integration to include the recently released BlackBerry MVS 5.1. Today Mitel Mobility for BlackBerry MVS delivers advanced Mitel business communications applications directly to BlackBerry smartphones and enables voice-over-Wi-Fi calls. The combined solution enables IT managers to consolidate data center management by combining Mitel’s voice virtualization and BlackBerry applications into a single virtual environment.

Mitel Mobility for BlackBerry MVS offers unrestricted handoff between users’ devices, moving calls seamlessly to and from their desk phone, BlackBerry smartphone, home phone, or soft phone. With the integration of BlackBerry MVS 5.1 users can benefit from the automatic handoff between Wi-Fi and cellular networks to help further reduce roaming and wireless charges.