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2.8 Using User-supplied Equipment
Operation
99
2.8.2 If a Host PBX is Connected
Accessing external services (External Feature Access)
You can access special features (e.g. Call
Waiting) offered by a host PBX or Central
Office. This feature is only effective with an
outside call.
• If you programme "EFA" (External Feature Access) to the FLASH button by system