If you have an existing investment in legacy business communications systems (PBXs and key systems), UC Server lets you leverage your existing investment and transition from legacy telephony to IT Telephony at your own pace. With its multi-PBX support, UC Server can provide all its unified communications features both natively on UC Server and on your legacy PBX. And, using UC Server’s routing and unified numbering capabilities via analog, digital or IP-based gateways you can seamlessly interwork with your existing legacy business communications system.

Legacy PBX Support Features

PBXs Supported for Unified Communications:

• Avaya Definity G3csi, G3i, G3r R4 and higher
• Communication Manager R1.0 and higher
• Avaya Merlin Magix R2.1 and higher
• Avaya IP Office R2.0 and higher
• Avaya Legend and Partner
• Mitel SX-200ICP, SX200 D, L, ML, EL (LW16 F41.0.2 and higher)
• Nortel Norstar CICS/MICS R4.1 and higher
• Generic analog (Inband DTMF)

PBX Interworking
Uniform dialing between UC Server and legacy PBXs via gateways supporting:

• FXO/FXS
• E&M
• H.323
• T1-CAS
• T1-PRI