/mcpYou can assign an intercom line to a device profile. Only when a user uses a device profile to log in to the default device that matches the default device of the intercom line does the intercom line become available. Otherwise, no intercom line is displayed when the user logs in. Intercom Prerequisites The intercom feature has the following system requirements: • Cisco Unified IP Phones Firmware Release 8.3(1) or later Intercom Configuration Task Flow Before you begin • Review Intercom Prerequisites, on page 312. Procedure Purpose Command or Action To add a new Intercom partition or configure an existing partition. Configure Intercom Partition, on page 312 Step 1 To add a new Intercom Calling Search Space. Configure an Intercom Calling Search Space, on page 313 Step 2 To add a new Intercom Translation Pattern or to configure an existing Intercom Translation Pattern . Configure an Intercom Translation Pattern, on page 314 Step 3 To add or update an Intercom Directory Number. Configure an Intercom Directory Number, on page 314 Step 4 Configure Intercom Line and Speed Dial. Intercom Line and Speed Dial Configuration, on page 315 Step 5 Configure Intercom Partition Before you begin Ensure the phone model supports the Intercom feature for a particular release and device pack Generate a Phone Feature List, on page 5 Procedure Step 1 From Cisco Unified CM Administration, choose Call Routing > Intercom > Intercom Route Partition. Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 312 Placing Calls Intercom Prerequisites