I type of circuit. 5. Capability to integrate with an Interactive Voice Re- sponse system. 6. Station and system speed dialing capability (state num- ber per station). 7. Built-in speakerphone capability on multi-line telephones. 8. Conferencing of up to five people. This must include the capability to drop calls to a busy or unanswered telephone from a conference call already in progress. The Telecom Handbook 36 67 PURCHASING A PBX 9. Differentiated ringing for internal and outside calls and for different telephones within the same area. 10. Toll restriction and the capability to override it. 11. Last number redial. 12. Capability to provide both boss-secretary and dial inter- coms, which can signal another telephone while it is in use with an audible tone distinguishable from the regular ringing telephone. Desirable System Capabilities Please state in your response whether each capability is stan- dard, optional or not available in the proposed system. 1. Capability to generate a printed directory of extension users. 2. Capability to provide some Automatic Call Distribution (ACD)-like reports as an indicator of staff productivity, such as the number of calls handled by each extension and the duration of the calls. 3. Capability to recognize Caller ID and ANI information sent to the PBX from the central office. 4. Capability to retain Caller ID or ANI digits with a call that is transferred or a call coming through the Auto- mated Attendant. 5. Capability for off-hook voice announcement on the intercom. 6. Capability to set up a busy lamp field for the switchboard attendant console and for individual multi-line telephones. 7. Toll fraud security features on the PBX and Voice Mail systems. 68 & The Telecom Handbook CHAPTER 3 Please provide the maximum for the following: Number of times the same extension can appear on other telephones. Number of extensions in a call pick up group. Number of call pick up groups in the system. Number of times a call can forward when the original exten- sion is unanswered or busy. Nu