Here are some more notes from my IIUC studies. As always, corrections requested.
- Allows users to look up names
- Allows names to show up when dialing or receiving a call
- Most phones have a directory button; some have a menu options for the directory
R1(config-ephone-dn)#name Roger Smith
- Directory entries can be added manually
R1(config-telephony)#directory entry 1 1700 Corporate Fax
R1(config-telephony)#directory entry 2 1701 HR Fax
- By default, sorting is done alphabetically by first name.
- Sorting can be changed
- Can be done by the user or through CLI
- User presses CFwdAll button, enters a number, and #; pressing CFwdAll again cancels forwarding.
- CLI forwarding is more flexible
R1(config-ephone-dn)#call-forward busy 1800
R1(config-ephone-dn)#call-forward noan 1800 timeout 25 <- if no answer after 25 seconds
R1(config-ephone-dn)#call-forward max-length 0 <- disabled forwarding
R1(config-ephone-dn)#call-forward max-length 4 <- restricts forwarded number to a length of 4 digits
- H.450.3: A voice gateway redirects the forward to another gateway instead of using the phone as a proxy
- Direct path from originator to destination
- Frees up network resources by keeping path direct
- Keeps latency and jitter down by avoiding long looping paths and a hairpin turn at the phone
- Forwarding patterns can help restrict where calls can be forwarded
R1(config-telephony)#call-forward pattern 1… <- allows forwarding to a 4-digit number starting with 1
- H.450.2: A voice gateway redirects transfers to another gateway instead of using the phone as a proxy.
- The user doing the transfer is dropped from the conversation after transfer is complete.
- Generically, there are two types of forwarding.
- Blind: sends the caller to the number blindly
- Consult: allows you to talk to the endpoint before transferring the call
- CME has three types of forwarding.
- full-blind: blind transfers using H.450.2 or SIP REFER
- full-consult: consult transfers using H.450.2 or SIP REFER if second line is available; if not, fall back to full-blind
- local-consult: Cisco-proprietary method for full-consult
– or –
- Transfer patterns work similarly to forwarding patterns
- Call parking allows a user to retrieve a call from any phone by "parking" the call to an extension.
- The call can be picked up from any phone able to dial that extension.
- Park numbers can be assigned randomly or manually.
R1(config-ephone-dn)#park-slot <- makes this DN a park slot
- Call parking has several options.
- reserved-for dn: Only that DN can use this park-slot
- timeout seconds: Ring the phone phone that parked the call after that many seconds to remind them of the park
- limit count: After that many timeout intervals, drop the call. Not good for customers.
- notify dn [ only ]: Notify that DN when a timeout is reached
- recall: Sends the call back to the original phone when the timeout is reached
- transfer dn: Sends the call to this DN when the timeout is reached
- alternate dn: If the DN in the transfer command is not available, go here
- retry seconds: Try to transfer again after this many seconds
- The phone must be reset for call parking to take effect.
- Allows users to pick up other ringing phones
- Best to use pickup groups so the sales guys don't pick up support calls by accident
- There are three methods to pickup a call.
- Directed pickup: A user picks up a ringing phone by pressing PickUp followed by the target DN.
- Local group pickup: A user picks up a ringing phone in his pickup group by pressing GPickUp then *.
- Other group pickup: A user picks up a ringing phone in another pickup group by pressing GPickUp then the other group number.
- Technically is a speed dial and auto-answer combination
- Intercom button is pressed, which dials a DN bound to another phone; that phone automatically answers on mute.
- The DNs involved usually (?) can't be dialed.
- e.g., A101
R1(config-ephone-dn)#intercom A98 label "Boss"
R1(config-ephone-dn)#intercom A99 label "Lackey"
- Other options
- barge-in: Places existing calls on hold on the other end and barges n
- no-auto-answer: Rings instead of auto answers
- no-mute: Doesn't mute when auto answering. Can you say spying?