/mcpStep 4 Click Upload File. Restart TFTP Service Before you begin Upload Custom Phone Rings to TFTP Server, on page 608 Procedure Step 1 Log in to Cisco Unified Serviceability and choose Tools > Control Center - Feature Services. Step 2 From the Server drop-down list, choose the server on which the Cisco TFTP service is running. Step 3 Click the radio button that corresponds to the Cisco TFTP service. Step 4 Click Restart. PCM File Format Requirements PCM files for phone rings must meet a set of requirements for proper playback on Cisco Unified IP Phones. When creating or modifying your PCM files, you can use any standard audio editing packages that support the following file format requirements: • Raw PCM • 8000 samples per second • 8 bits per sample • mu-law compression • Maximum ring size: 16080 samples • Number of samples in the ring must be evenly divisible by 240 • Ring starts and ends at the zero crossing Ringlist.xml File Format Requirements The Ringlist.xml file defines an XML object that contains a list of phone ring types. Each ring type contains a pointer to the PCM file that is used for that ring type and the text that will display on the Ring Type menu on a Cisco Unified IP Phone for that ring. The CiscoIPPhoneRinglist XML object uses the following simple tag set to describe the information: <CiscoIPPhoneRinglist> <Ring> <DisplayName/> <FileName/> </Ring> </CiscoIPPhoneRinglist> The following characteristics apply to the definition names: Feature Configuration Guide for Cisco Unified Communications Manager, Release 15 and SUs 609 Custom Features Restart TFTP Service