La Conformación del diseño

Call park allows a user to hold a call but retrieve it from another location by dialing the call park extension. A call-park extension is a "floating" ephone-dn that is not assigned to any ephone. Multiple calls can be parked at a single extension and are retrieved by dialling the extension; calls are picked up in the order in which they were parked. The syntax is rela- tively complex and specifies several options:

• park-slot [reserved-for extension-number] [timeout seconds limit count] [notify extension-number [only]] [recall]

[transfer extension-number][alternate extension-number][retry seconds limit count].

• reserved-for: (Optional) Indicates that this slot is a private park slot for the phone with the specified extension

number as its primary line. All lines on that phone can use this park slot.

• timeout seconds: (Optional) Sets the Call Park reminder timeout interval, in seconds. The range is from 0 to 65535.

W h e n the interval expires, the Call Park reminder sends a 1-second ring and displays a message on the L C D panel of the Cisco IP Phone that parked the call and to any extension that is specified with the notify keyword. By default, the reminder ring is sent only to the phone that parked the call. If the timeout keyword is not used, no reminder ring is sent to the extension that parked the call.

• limit count: (Optional) Sets a limit for the number of reminder timeouts and reminder rings for a parked call. For

example, a limit of 10 sends 10 reminder rings to the phone at intervals that are specified by the timeout keyword. W h e n a limit is set, a call parked at this slot is disconnected after the limit has been reached. The limit range is from

1 to 65535 reminders.

• notify extension-number: (Optional) Sends a reminder ring to the specified extension in addition to the reminder

ring that is sent to the phone that parked the call.

• only: (Optional) Sends a reminder ring only to the extension that is specified with the notify keyword and does not

send a reminder ring to the phone that parked the call. This option allows all reminder rings for parked calls to be sent to the phone of a receptionist or an attendant, for example.

• transfer: (Optional) Returns the call to the specified number after the timeout limits expire.

• alternate: (Optional) Returns the call to a specified second target number if the recall or transfer target phone is in

use on any of its extensions (ringing or in conversation).

• retry seconds: (Optional) Sets the delay before another attempt to recall or transfer a parked call, in seconds. The

range is from 0 to 65535. The number of attempts is set by the limit keyword.

The following example creates four call-park slots. Ephone-dn 10 and 11 can be used by any extension. A call parked in these slots will stay parked for 100 seconds and will send a notification every 10 seconds to the extension that parked it. If the 100-second limit elapses, the parked call is automatically transferred to 5309; if 5309 is busy or does not answer, it goes to 5310. Ephone-dn 12 and 13 are reserved for 5301 and 5302, respectively. After a call has been parked for 100 seconds, it will be disconnected.

ephone-dn 10 number 7000 p a r k - s l o t t i m e o u t 1 0 l i m i t 1 0 t r a n s f e r 5309 a l t e r n a t e 5310 ephone-dn 11 number 7001 p a r k - s l o t t i m e o u t 1 0 l i m i t 1 0 t r a n s f e r 5309 a l t e r n a t e 5310 ephone-dn 12 number 7002 p a r k - s l o t t i m e o u t 1 0 l i m i t 1 0 r e s e r v e d - f o r 5301 ephone-dn 13 number 7003 p a r k- s l o t t i m e o u t 1 0 l i m i t 1 0 r e s e r v e d - f o r 5302

Intercom

An intercom is a one-way audio speed-dial. Commonly used by an executive to an admin assistant, it allows the user to press a phone button and be directly connected to another user. The destination phone answers the call in muted speaker- phone mode so that privacy is maintained. Any user could dial the intercom if the extension is known. To make it impos- sible for anyone to dial the intercom (except those phones configured to do so), the extension number of the intercom can include the A, B, C, or D character. These characters were at one time part of the touchtone dialpad, but because they are no longer on the phone itself, users cannot dial them; it is still possible to configure them in an ephone-dn, however. The following configuration shows a typical intercom configuration, using the B digit as part of the intercom extension number:

ephone-dn 10 number 5301

name "Tommy TuTone" ephone-dn 20 number 5309 name "Jenny" ephone-dn 51 number B5555 name "Tommy TuTone"

i n t e r c o m B5556 l a b e l "Tommy TuTone" ephone-dn 52 number B5556 name "Jenny" i n t e r c o m B5555 l a b e l "Jenny" ephone 6 b u t t o n 1:10 2 : 5 1 ephone 7 b u t t o n 1:20 2 : 5 2

Paging

Audio paging builds a one-way audio path from the speaker to a single phone, a group of phones, or combined groups of phones. A paging group is created by configuring a d u m m y ephone-dn with the paging command and associating that ephone-dn with one or more ephones using the paging-dn command. When a user dials the paging extension, all config- ured phones answer the call in muted speakerphone mode. The default transport is unicast, which limits paging to a m a x i m u m of 10 targets; multicast is also supported. The command syntax to create the ephone-dn is the following:

R o u t e r ( c o n f i g - e p h o n e - d n ) # p a g i n g [ i p multicast-address p o r t udp-port]

The following shows the syntax for associating an ephone to the paging ephone-dn. Note the unicast keyword, which will override the multicast configuration if the phone is not reachable by multicast:

R o u t e r ( c o n f i g - e p h o n e ) # p a g i n g - d n paging-dn-tag [ u n i c a s t ]

The following example sets up a single paging group:

ephone-dn 25 number 2525 name Paging S h i p p i n g p a g i n g i p 2 3 9 . 0 . 1 . 2 5 p o r t 2000 ephone-dn 18 number 1818 ephone-dn 15 number 1515 ephone 1 mac-address AAAA.BBBB.CCCC b u t t o n 1:18 p a g i n g - d n 25 ephone 2

mac-address BBBB.CCCC.DDDD b u t t o n 1:15

p a g i n g - d n 25