Cisco Unified Mobility, commonly known as Single Number Reach, gives users the ability to redirect incoming IP calls from the Cisco Unified Communications Manager to up to four different designated client devices such as mobile phones or IP phones.

For example, Cisco Unified Mobility associates a user's mobile phone number with the user's business IP phone number. It then directs incoming calls to ring on a user's cell phone as well as the business phone, providing a single number for callers to reach the user. Calls that go unanswered on all the designated devices are redirected to the user's Cisco Unity messaging system.