Multicast Music-on-Hold Support on Cisco UBE

First Published: July 22, 2011

Last Updated: July 22, 2011

The Multicast Music-on-Hold (MMOH) feature enables you to subscribe to a music streaming service when you are using a Cisco Unified Border Element. Music streams from an MMOH server to the interface of Cisco UBE, which then converts it into unicast. To play the MMOH to customers using Cisco UBE, you must enable the MMOH feature on Cisco UBE.

Prerequisites for Multicast Music-on-Hold Support on Cisco UBE

Cisco Unified Border Element

  • Cisco IOS Release 15.2(1)T or a later release must be installed and running on your Cisco Unified Border Element.

Restrictions for Multicast Music-on-Hold Support on Cisco UBE

  • The Multicast Music-on-Hold (MMOH) feature will not work when the Session Description Protocol (SDP) Passthrough feature is enabled on Cisco UBE.

  • The MMOH feature will work for Low Density Transcoded calls but not for High Density Transcoded calls.

  • MMOH is supported only on SIP-to-SIP call flows on Cisco UBE.

  • MMOH with RTCP is not supported.

  • MMOH is not supported for SRTP trunk.

  • MMOH with media flow-around is not supported.

Information About Multicast Music-on-Hold Support onCisco UBE

Multicast Music-on-Hold

To play Multicast Music-on-Hold (MMOH) to customers using Cisco UBE, you must enable the MMOH feature on Cisco UBE. When Cisco UBE receives an MMOH call, it converts the multicast address received on the inbound leg into a unicast address and sends the address on the outbound leg.

Cisco UBE uses preconfigured CLIs to "listen" for Real-Time Transport Protocol (RTP) packets that are broadcast from an MMOH server in the network and converts them to unicast. When a call is placed on hold, the MOH server streams the RTP packets to the Cisco UBE interface. This interface converts the RTP packets to unicast and relays the packets to the appropriate voice interfaces that have been placed on hold.


Note

MMOH is already supported on SIP-TDM gateways.

How to Enable Multicast Music-on-Hold on Cisco UBE

Enabling MMOH on Cisco UBE

Perform this task to enable the MMOH feature on Cisco UBE.

SUMMARY STEPS

    1.    enable

    2.    configure terminal

    3.    ip multicast-routing distributed

    4.    interface gigabitethernet router-shelf/slot/port

    5.    ip address ip-address subnet-mask

    6.    ip pim dense-mode

    7.    negotiation auto

    8.    exit

    9.    ccm-manager music-on-hold

    10.    exit


DETAILED STEPS
     Command or ActionPurpose
    Step 1 enable


    Example: 
    Device> enable
     

    Enables privileged EXEC mode.

    • Enter your password if prompted.

     
    Step 2 configure terminal


    Example: 
    Device# configure terminal
     

    Enters global configuration mode.

     
    Step 3 ip multicast-routing distributed


    Example: 
    Device(config)# ip multicast-routing distributed
     

    Enables distributed IP multicast routing.

     
    Step 4 interface gigabitethernet router-shelf/slot/port


    Example: 
    Device(config)# interface gigabitethernet 0/0/0
     

    Configures a Gigabit Ethernet interface and enters interface configuration mode.

     
    Step 5 ip address ip-address subnet-mask


    Example: 
    Device(config-if)# ip address 9.40.1.140 255.255.0.0
     

    Configures the IP address and the subnet mask on the interface.

     
    Step 6 ip pim dense-mode


    Example: 
    Device(config-if)# ip pim dense-mode
     

    Enables protocol-independent multicast (PIM) dense-mode operation.

     
    Step 7 negotiation auto


    Example: 
    Device(config-if)# negotiation auto
     

    Performs link auto-negotiation.

     
    Step 8 exit


    Example: 
    Device(config-if)# exit
     

    Exits interface configuration mode.

     
    Step 9 ccm-manager music-on-hold


    Example: 
    Device(config)# ccm-manager music-on-hold
     

    Enables the multicast music-on-hold feature on a voice gateway.

     
    Step 10 exit


    Example: 
    Device(config)# exit
     

    Exits global configuration mode and enters privileged EXEC mode.

     

    Verifying the MMOH Support on Cisco UBE

    Perform this task to verify the MMOH support on Cisco UBE. The show commands can be entered in any order.

    SUMMARY STEPS

      1.    enable

      2.    show ccm-manager music-on-hold

      3.    show voip rtp connections

      4.    show call active voice compact

      5.    show platform hardware qfp active feature sbc mmoh global

      6.    show platform hardware qfp active feature sbc mmoh group


    DETAILED STEPS
      Step 1   enable

      Enables privileged EXEC mode.



      Example: 
      Device> enable
      Step 2   show ccm-manager music-on-hold

      Displays information about all the multicast music-on-hold (MOH) sessions in the gateway at any given time.



      Example: 
      Device# show ccm-manager music-on-hold
Current active multicast sessions: 1
Multicast Address   RTP port number    Packets in/out    CallId   Codec    Incoming Interface
239.1.1.1           16386              614/614           132     g711ulaw
Gi0/0

      Step 3   show voip rtp connections

      Displays RTP-named event packets.



      Example: 
      Device# show voip rtp connections

VoIP RTP Port Usage Information:
Max Ports Available: 20000, Ports Reserved: 101, Ports in Use: 2
Port range not configured, Min: 8000, Max: 48200
	Ports       Ports       Ports     
Media-Address Range                     	Available   Reserved    In-use    
Default Address-Range                   	20000       101         2 

VoIP RTP active connections:
No. CallId     dstCallId       LocalRTP RmtRTP     LocalIP                                RemoteIP
1     140        141            18792    18638     9.42.30.10                             9.42.30.32
2     141        140            19256    26184     9.42.30.10                             9.42.30.189
Found 2 active RTP sessions

      Step 4   show call active voice compact

      Displays a compact version of voice calls in progress.



      Example: 
      Device# show call active voice compact
<callID>  A/O FAX T<sec> Codec       type        Peer Address       IP R<ip>:<udp>
Total call-legs: 3
       140 ANS     T644   g711ulaw    VOIP        P10000       9.42.30.32:18638
       141 ORG     T644   g711ulaw    VOIP        P708090      9.42.30.189:26184
       145 ORG     T643   g711ulaw    VOIP        P595959      9.42.29.7:3852

      Step 5   show platform hardware qfp active feature sbc mmoh global

      Displays SBC multicast Music-on-Hold global statistics.



      Example: 
      Device# show platform hardware qfp active feature sbc mmoh global

SBC multicast Music-on-Hold Global Statistics
------------------------------------------------------------------
 Total MMOH groups                           = 1
 Total RTP packets received                  = 6311
 Total RTP octects received                  = 1262200
 Total RTP packets replicated                = 6311
 Total RTP octects replicated                = 1262200
 Total RTP packets dropped                   = 0
 Total RTP octects dropped                   = 0

      Step 6   show platform hardware qfp active feature sbc mmoh group

      Displays SBC multicast Music-on-Hold group structure.



      Example: 
      Device# show platform hardware qfp active feature sbc mmoh group

SBC multicast Music-on-Hold group structure:
---------------------------------------
 VRF                                   = 0
 IP                                    = 239.1.1.1
 Port                                  = 16384
 Protocol                              = 1
 Calls in group                        = 1
 
SBC MMOH group Statistics
---------------------------------------
  Total RTP packets received                  = 406
  Total RTP octects received                  = 81200
  Total RTP packets replicated                = 406
  Total RTP octects replicated                = 81200
  Total RTP packets dropped                   = 0
  Total RTP octects dropped                   = 0

      Troubleshooting Tips

      The following commands can help troubleshoot MMOH:

      • debug ccm-manager music-on-hold [ all | errors | events ]

      • debug voip rtp

      • debug ccsip all

      Configuration Examples for Multicast Music-on-Hold Support on Cisco UBE

      Example: Enabling MMOH on Cisco UBE

      Device> enable
Device# configure terminal
Device(config)# ip multicast-routing distributed
Device(config)# interface gigabitethernet 0/0/0
Device(config-if)# ip address 9.40.1.140 255.255.0.0
Device(config-if)# ip pim dense-mode
Device(config-if)# negotiation auto
Device(config-if)# exit
Device(config)# ccm-manager music-on-hold
Device# show running-config
Building configuration...
Current configuration : 2375 bytes
!
! Last configuration change at 11:01:36 UTC Wed Jan 5 2011
!
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname carbon-1
!
boot-start-marker
boot system flash usbflash0:c2951-universalk9-mz.SSA.MMOH-carbon_dev
boot-end-marker
!
!
!
no aaa new-model
!
no ipv6 cef
ip source-route
ip cef
!
!
!
ip multicast-routing
!
!
no ip domain lookup
multilink bundle-name authenticated
!
!
!
!
!
crypto pki token default removal timeout 0
!
!
voice-card 0
!
!
!
voice service voip
 mode border-element license capacity 1200
 allow-connections sip to sip
 sip
!
!
!
!
!
license udi pid CISCO2951/K9 sn FHK1433F39H
hw-module pvdm 0/0
!
!
!
!
redundancy inter-device
!
!
redundancy
!
!
!
!
!
!
interface GigabitEthernet0/0
 ip address 9.42.30.12 255.255.0.0
 duplex auto
 speed auto
!
interface GigabitEthernet0/1
no ip address
 shutdown
 duplex auto
 speed auto
!
interface GigabitEthernet0/2
 no ip address
 shutdown
 duplex auto
 speed auto
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
ip route 0.0.0.0 0.0.0.0 9.42.0.1
!
!
nls resp-timeout 1
cpd cr-id 1
!
!
control-plane
!
!
ccm-manager music-on-hold
!
!
mgcp profile default
!
!
dial-peer voice 100 voip
 destination-pattern 878767
 session protocol sipv2
 session target ipv4:9.42.30.5
 codec g711ulaw
!
gatekeeper
 shutdown
!
!
!
line con 0
 speed 115200
line aux 0
line vty 0 4
 login
 transport input all
!
exception data-corruption buffer truncate
scheduler allocate 20000 1000
end

      Feature Information for Multicast Music-on-Hold Support on Cisco UBE

      The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.

      Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http:/​/​www.cisco.com/​go/​cfn . An account on Cisco.com is not required.

      Table 1 Feature Information for Multicast Music-on-Hold Support on Cisco UBE

      Feature Name

      Releases

      Feature Information

      Multicast Music-on-Hold Support on Cisco UBE

      15.2(1)T

      Cisco IOS XE Release 3.11S

      The Multicast Music-on-Hold (MMOH) feature enables you to subscribe to a music streaming service when you are using a Cisco Unified Border Element. To play MMOH to customers using Cisco UBE, you must enable the MMOH feature on Cisco UBE.

      No new commands were introduced or modified.