/mcpThe Speech Connect Port Configuration page displays the currently configured speech connect ports. Step 2 In New Speech Connect Port, select the Unity Connection server from the Server drop down list and in the Number of Ports field, enter the number of Speech Connect ports that you want to configure. Step 3 Select Save. Audio and Video Format Using Phone Cisco Unity Connection advertises the audio format (or codec) that is preferred for the media stream with the phone system. Consider the following when setting the audio format: • When Unity Connection advertises a different audio format than the one used by the phone system, the phone system transcodes the media stream. • Unity Connection should use the same audio format for the media stream that the phone system uses for the following reasons: • To reduce the need for transcoding the media stream from one audio format to another. • To minimize the performance impact on the Unity Connection server and on the phone system. • To preserve the audio quality of the calls. For more information on audio format codecs, see the “Audio Codecs” section in the “Sizing and Scaling Cisco Unity Connection Servers” chapter of the Design Guide for Cisco Unity Connection available at, https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/15/design/guide/b_15cucdg.html. Configuring the Audio and Video Format Step 1 In Cisco Unity Connection Administration, expand Telephony Integrations, and then select Port Group. Step 2 On the Search Port Groups page, select the port group that belongs to the phone system integration for which you want to change the audio format of the media stream. Step 3 On the Port Group Basics page, on the Edit menu, select Codec Advertising. Step 4 On the Edit Codec Advertising page, select the Up and Down arrows to change the order of the codecs or to move codecs between the Advertised Codec box and the Unadvertised Codecs box. If only one codec is in the Advertised Codecs box, Cisco Unity Connection sends the media stream in that audio format. The phone system transcodes if it does not use this audio format. If two or more codecs are in the Advertised Codecs box, Unity Connection advertises its preference for the first codec in the list. It sends the media stream in the audio format from the list that the phone system selects. Step 5 Select Save. Step 6 (All integrations except SCCP) If you want to change the packet size that is used by the advertised codecs, on the Port Group Basics page, under Advertised Codec Settings, select the applicable packet setting for each codec in the Packet Size list, and select Save. System Administration Guide 73 Telephony Integration Audio and Video Format Using Phone