<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">As mentioned in Bug Search, CUCM 10.0 and newer did not allow an external USB audio interface to be used where a fixed audio source could be played as Unicast, therefore requiring CUBE to do multicast/unicast conversion for PSTN SIP Trunk calls. I noticed the update to this bug on February 20th says Status: Fixed. If I’m reading this correctly, CUCM may be configured to listen to a multicast stream on the network and will do the conversion on the server to Unicast when calls are placed on hold. <div class=""><br class=""></div><div class=""><br class=""></div><div class="">
<br class=""><div class=""><img apple-inline="yes" id="3A2799C8-F970-4D45-9DF6-A9C21B363B04" height="430" width="784" apple-width="yes" apple-height="yes" src="cid:2DEC0582-9BBC-4EC3-A62D-8E7B7B1637B1" class=""></div></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div style="display: table; margin-top: -13px;" class=""><div class="releaseNoteText" style="display: table-cell; vertical-align: top; width: 760px;"><span style="font-weight: 700;" class="">Symptom:</span><br class="">Customers that have been using CUCM releases prior to CUCM 10.0 on MCS (hardware) servers had the capability of using a USB MOH sound device to connect an external audio source such as CD, Radio, Jukebox, etc. for use as a CUCM Music-on-Hold audio source. This enabled playing custom or live music on hold for callers capable of multicast stream reception and/or for callers requiring a unicast stream (such as mobile callers).<br class=""><br class=""><span style="font-weight: 700;" class="">Conditions:</span><br class="">Starting with CUCM 10.0, the MCS (hardware) servers are no longer supported. Only VM installation is supported. This also means that the USB MOH sound device are also no longer supported for an external Music-on-Hold audio source. To overcome this limitation, you can configure Cisco Unified Survivable Remote Site Telephony (SRST) router as an audio source. This router provides multicast MOH audio for devices that are capable of multicast reception. In this approach, devices act as if Cisco Unified Communications Manager is sending the multicast MOH audio. However, in this approach too, devices that are capable of only the unicast reception cannot hear the MOH audio that an external MOH source (for example, Cisco Unified SRST router) sends. Devices that are capable of only unicast reception can be public switched telephone network (PSTN) phones, destination to session border controllers (SBC), and Session Initiation Protocol (SIP) trunks.<br class=""><br class=""><span style="font-weight: 700;" class="">Workaround:</span><br class="">None<br class=""><br class=""><span style="font-weight: 700;" class="">Further Problem Description:</span><br class="">This feature develops capability to configure one or more external Multicast Source(s) on CUCM Audio Source configurations. CUCM MOH will support receiving one or more multicast RTP Music stream from an external multicast source and unicast/multicast it to held callers. This allows replacing one or more of the MOH wav file audio sources with external multicast stream(s).<br class="">Depending on what hardware / software is used to provide the external multicast stream(s), the originating source could be from a wav file, CD player, radio, or other audio device. As an example the Cisco SRST GW/Router can use an E&M port to connect a CD player as a source.<br class="">MOH Audio Source Configuration page on CUCM admin is enhanced to configure following fields :<br class="">i)Rebroadcast External Multicast Source<br class="">ii)Source IPv4 Multicast Address<br class="">iii)Source Port Number<br class=""><br class="">This feature has no impact on existing functionality of playing multicast MOH audio using external<br class="">audio source for the devices that are capable of multicast reception.<br class="">For unicast media connection, Cisco Unified Communications Manager MOH Server plays initial<br class="">announcement and periodic announcement even if you configure the MOH audio source with external<br class="">multicast source.<br class=""><br class="">Codec Specific Inbound Stream using External Multicast Source :<br class="">Configure an external multicast audio source, such as Cisco Unified SRST router, to MOH server for streaming the required audio feed.<br class="">i)Cisco Unified Communications Manager listens to multicast G.711 mu-law stream on external multicast<br class="">IP address and port that you configured on the MOH Audio Source configuration window. An MOH<br class="">server can transcode between the G.711 mu-law or a-law or L16 256K wideband MOH codecs. The<br class="">external multicast RTP stream uses G.711 mu-law codec for MOH as a source for G.711 mu-law or<br class="">a-law or L16 256K wideband MOH codecs. For G.711 a-law and wideband calls, Cisco Unified<br class="">Communications Manager MOH server transcodes the inbound G.711 mu-law stream to outbound G.711<br class="">a-law or wideband stream before sending it to the device.<br class="">ii)Cisco Unified Communications Manager listens to multicast G.729 stream on external multicast IP and<br class="">port value added with four that is configured on the MOH audio source configuration window. For<br class="">example, if you configure an MOH audio Source with 239.1.1.1:16384, Cisco Unified Communications<br class="">Manager listens to G.711 mu-law stream on 239.1.1.1:16384 and G.729 stream on 239.1.1.1:16388 (port<br class="">value added with four). An MOH server cannot transcode for G.729 codecs. Callers who are using MOH<br class="">G.729 codec require an external multicast RTP stream using G.729 or G.729a codec.<br class=""><br class=""></div><div class="currentRatingDesc" style="display: table-cell; padding-left: 25px; width: 155px;"><div style="clear: both; width: 161px;" class=""></div><div style="width: 161px;" class=""><div class="bugVisibility" style="width: 12em; height: 23px; float: right; padding-right: 13px; padding-top: 19px;"><div id="userIcon" class="customerIcon" style="background-image: url(https://tools.cisco.com/bugsearch/resources-2.0.22/images/user_0020_24.png); background-attachment: scroll; cursor: pointer; display: inline-block; height: 2.4em; width: 2.5em; margin-left: -3px; margin-top: -2px; float: left; background-position: 0px 1px; background-repeat: no-repeat no-repeat;"></div><div class="userText" style="margin-top: 3px;">Customer Visible</div></div></div><div style="width: 161px; padding-left: 50px; padding-top: 6px; padding-bottom: 10px; clear: both;" class=""><span id="ele2" style="line-height: 1.3333em;" class=""><div class="enabledcollapseContainer" style="width: 110px; height: 20px; cursor: pointer; margin-left: 1px !important;"><button class="bug-notification buttonStyle" style="margin: 2px 0px 0px; font-family: Arial, Helvetica, sans-serif; font-size: 12px; line-height: inherit; overflow: visible; cursor: pointer; height: 24px; padding-left: 0px; padding-right: 0px; border: 1px solid rgb(153, 153, 153); color: rgb(68, 68, 68); float: right; width: 160px; text-align: left; border-top-left-radius: 5px !important; border-top-right-radius: 5px !important; border-bottom-right-radius: 5px !important; border-bottom-left-radius: 5px !important;"><div class="notificationIcon" style="cursor: pointer; display: inline-block; height: 1.4em; width: 1.5em; margin-left: 4px; margin-top: -2px; float: left;"><img style="border: 0px; vertical-align: middle !important; margin-left: 1px !important;" apple-inline="yes" id="FDE81501-4F1C-4BB3-916F-E6352E613032" height="16" width="16" apple-width="yes" apple-height="yes" src="cid:7AEB8EC4-6E77-4C65-BF34-DCD0C7776FA5" class=""></div><div class="buttonText" style="padding-left: 25px;">Add Notification</div></button></div></span></div><div id="saveBugDetailsButton" style="width: 161px; padding-top: 6px; clear: both;" class=""><button class="saveBugInDetails buttonStyle" tabindex="22" id="saveBugHelp" style="margin: -3px 0px 0px; font-family: Arial, Helvetica, sans-serif; font-size: 12px; line-height: inherit; overflow: visible; cursor: pointer; border-top-left-radius: 5px; border-top-right-radius: 5px; border-bottom-right-radius: 5px; border-bottom-left-radius: 5px; height: 24px; padding-left: 0px; padding-right: 0px; border: 1px solid rgb(153, 153, 153); color: rgb(68, 68, 68); float: right; width: 160px; text-align: left;"><div class="content"><div class="saveWatchListIcon" style="background-image: url(https://tools.cisco.com/bugsearch/resources-2.0.22/images/save_0019_16.png); background-attachment: scroll; background-color: transparent; cursor: pointer; display: inline-block; height: 1.4em; width: 1.5em; margin-left: 5px; margin-top: -2px; float: left; background-position: 0px 1px; background-repeat: no-repeat no-repeat;"></div><div class="buttonText" style="padding-left: 25px;">Save Bug</div></div></button></div><div style="width: 161px; padding-top: 6px; clear: both;" class=""><button id="supportCaseButton" class="openCase buttonStyle" tabindex="23" style="margin: 2px 0px 0px; font-family: Arial, Helvetica, sans-serif; font-size: 12px; line-height: inherit; overflow: visible; cursor: pointer; border-top-left-radius: 5px; border-top-right-radius: 5px; border-bottom-right-radius: 5px; border-bottom-left-radius: 5px; height: 24px; padding-left: 0px; padding-right: 0px; border: 1px solid rgb(153, 153, 153); color: rgb(68, 68, 68); float: right; width: 160px; text-align: left;"><div class="content"><div class="openSupportCaseIcon" style="background-image: url(https://tools.cisco.com/bugsearch/resources-2.0.22/images/Contract_requred_1337_16.png); background-attachment: scroll; background-color: transparent; cursor: pointer; display: inline-block; height: 1.4em; width: 1.5em; margin-left: 4px; margin-top: -2px; float: left; background-position: 0px 0px; background-repeat: no-repeat no-repeat;"></div><div class="buttonText" style="padding-left: 25px;">Open Support Case</div></div></button></div></div></div><div class="behaviorChangeArea" style="background-image: none; background-attachment: scroll; background-color: rgb(255, 241, 175); border: 0px solid rgb(228, 216, 157); height: 31px; margin-left: 0px; margin-right: auto; padding: 5px; width: 708.28125px; margin-top: 25px; background-position: 0px 0px; background-repeat: repeat repeat;"><div class="behaviorChangeIcon" style="height: 16px; padding: 8px; width: 18px; float: left; background-image: url(https://tools.cisco.com/bugsearch/resources-2.0.22/images/alert_minor_2002_16.png); background-attachment: scroll; color: rgb(68, 68, 68); font-family: Arial, Helvetica, sans-serif; background-position: 50% 50%; background-repeat: no-repeat no-repeat;"></div></div></div></body></html>