I'm not sure there is a "standard" for this type of config as every deployment is different :) In pre CCM 5.x/6.x setups the Secretary likely has multiple Line appearances of her own Listed DN along with a Speeddial to the Manager with Auto Answer on His/Her end to act as an Intercom.
The lines on the 7914's are usually used to Monitor other users (Ring Setting Off) to see a type of Presence Off Hook/On Hook before Transferring calls to them.
With the release of CCM 5.x/6.x (I beleive you are moving towards CCM 6.x :) there are many more configuration options along with Department Attendant Console availability.
True Intercom can be setup;
The Intercom feature allows a user to place a call to a predefined target (phone). The called destination auto-answers the call in speakerphone mode with mute activated. This sets up a one-way voice path between the initiator and the destination, so the initiator can deliver a short message, regardless of whether the called party is **busy or idle.
To ensure that the voice of the called party is not sent back to the caller when the intercom call is automatically answered, Cisco Unified Communications Manager implements whisper intercom. Whisper intercom provides only one-way audio from the caller to the called party. **The called party must manually press a key to talk to the caller.
The Lines on the 7914's will likely change as well with the introduction of "built-in Presence"
In CCM 6.x this is a traditional BLF (Busy Lamp Field) which is used to monitor On/Off Hook, Busy/Idle conditions on users phones, as well as having a Speeddial functionality for fast dialing and Transfers.These keys can't be used to answer actual calls.
In Cisco Unified CallManager 6.x this is called - Speed Dial Presence
Cisco Unified CallManager supports the ability for a speed dial to have presence capabilities via a busy lamp field (BLF) speed dial. BLF speed dials work as both a speed dial and a presence indicator.Only the system administrator can configure a BLF speed dial; a system user is not allowed to configure a BLF speed dial.
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The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...