CUCM Presence Vs CUPS Presence

Unified Presence
In Cisco Unified Communicator Manager (CUCM ) , Users can check the status of another phone via what is known as "Phone Presence" i.e status of phone/line DN being in either ON HOOK state, OFF HOOK state ,  DO NOT DISTURB state etc.This feature in CUCM is called BLF (Busy Lamp Field).BLF displays the real-time status of another phone device "phone presence" information". There are couple of ways BLF status can be seen in CUCM: BLF Speed Dial : BLF SD is two-fold feature.First,you can press SD button to call another Speed Dial extension and also, you can see "phone presence" status of SD user's extension. BLF Call Lists  : Using BLF Call Lists Feature,which is actually configured at Enterprise Parameter Level, you can monitor "phone presence" status via Missed…
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Understanding & Configuring Presence Service in Cisco Unified CME

Unified Presence
A presence service is a system for finding,retrieving, and distributing presence information from a source, called a presence entity (presentity), to an interested party called a watcher.Presence Service enables the calling party to know before dialing whether the called party is available.Presence features uses SIP SUBSCRIBE and NOTIFY methods to allow users and applications to subscribe to changes in the line status of phones in a Cisco Unified CME .Phones act as watchers and a presentity is identified by a directory number on a phone. SIP phones and trunks use SIP messages for presence information; SCCP phones use presence primitives in SCCP messages.SIP/SCCP phones can subscribe to Busy Lamp Field (BLF) speed-dial notification as well as BLF for directory call lists for missed calls, placed calls, and received calls. Here…
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CME7.1 : Configuring Whisper Intercom Feature

CUCME
Cisco Unified CME 7.1 introduced Whisper Intercom feature.This feature allows a user to call to a busy extension.When a phone user dials a whisper intercom line, the called phone automatically answers using speakerphone mode, providing a one-way voice path from the caller to the called party, regardless of whether the called party is busy or idle.The calling party can only be heard by the recipient of call.If called phone was busy,the original caller on the receiving phone does not hear the whisper call. The phone receiving a whisper page displays the extension and name of the party initiating the whisper page and CUCME plays a zipzip tone before the called party hears the caller's voice thus establishing a one-way audio channel. If the called party wants to speak to the…
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Configuring Extension Mobility on Cisco Unified Communication Manager Express

CUCME
Extension Mobility feature has been added to CUCME beginning in release 4.2 and later.Enhancements like  Automatic Logout ,Automatic Clear Call History and Privacy on an Extension Mobility Phone were made in CUCME version 4.3. In order to configure Extension Mobility on CUCME , here are the quick 4 mandatory steps involved: Step1: Configure Cisco Unified CME for EM Service : cucme-hq(config)#ip http server cucme-hq(config)#telephony-service cucme-hq(config-telephony)#url authentication http://192.168.15.2/CCMCIP/authenticate.asp appname cisco cucme-hq(config-telephony)#authentication credential appname cisco cucme-hq(config-telephony)#em keep-history cucme-hq(config-telephony)#em logout 19:00 24:00 Explanation : Here,we turned on HTTP server on the Cisco Unified CME router that hosts the service URL for the Extension Mobility Login and Logout pages.We configured URL authentication which instructs IP phones to send HTTP requests to the authentication server.Also,we created an entry for an EM application's credential(appname) with password(cisco) in the…
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