For phone destinations other than your primary extension, you can use the Loop Detection Enabled setting to indicate when you have configured a phone to forward calls to Cisco Unity Connection. For example, you may configure your mobile phone to forward all calls to Connection to store all your voice messages in Connection. If you then create a rule that transfers calls from Connection to your mobile phone, you may inadvertently create a call-looping situation in which Connection forwards calls to your mobile phone, and your mobile phone consequently forwards calls back to Connection, and callers may never be able to reach you.
Selecting this setting can help to eliminate the call-looping problem. If calls seem to be transferring from the phone destination to Connection and then back to the phone, Connection will either transfer the call to the next assigned device (if you have created a destination group) or transfer the call to voicemail if there are no additional destinations defined.
 Note | When this setting is enabled, you can expect to hear a slight delay as Connection transfers the call to the next destination in the destination group, or to voicemail. |