Advanced Phone Features1013. Click on Advanced.4. Enter the SIP URI (e.g., sip:moh@sip.com) in the Music Server URI field.5. Click Confirm to accept the change.When you have placed a call on hold, the held party can hear the music.NoteAutomatic Call Distribution (ACD)ACD is often used in offices for customer service, such as call center. The ACD systemhandles large volumes of incoming calls from callers who have no need to talk to aspecific person but who require assistance from any of multiple persons at the earliestopportunity. The ACD feature on the SIP-T41P IP phone allows the ACD system todistribute large volumes of incoming calls to the registered IP phone users. To use thisfeature, you should configure an ACD key in advance.NoteTo configure an ACD key via phone user interface:1. Press Menu->Features->DSS Keys.2. Select the desired DSS key.All involved parties cannot use encrypted RTP (SRTP).You can configure the music on hold server via web user interface only.Make sure the ACD feature is enabled on your IP phone. For more information aboutenabling the ACD feature, contact your system administrator.