Which Cisco IOS configuration at the SRST router is correct?

Refer to the exhibit. Multicast MOH needs to be run from flash at the remote site. Which Cisco IOS configuration at the SRST router is correct?


A. !
call-manager-fallback
ip source-address 10.1.5.102 port 2000
max-ephones 2
max-dn 8 dual-line
moh music-on-hold au
multicast moh 239.1.1.1 port 16384
B. !
call-manager-fallback
ip source-address 10.1.5.102 port 2000
max-ephones 2
max-dn 8 dual-line
moh music-on-hold au
multicast moh 239.1.1.1 port 163t
C. call-manager-fallback
ip source-address 10.1.120.1 port 2000 max-ephones 2 max-dn 8
moh music-on-hold.au
multicast moh 239.1.1.1 port 32767
D. !
call-manager-fallback
ip source-address 10.1.5.102 port 2000
max-ephones 2
max-dn 8 dual-line
moh music-on-hold an
multicast moh 239.1.1.1 port 32767

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7 thoughts on “Which Cisco IOS configuration at the SRST router is correct?

  1. If I am guided by the topology the answer would be::
    call-manager-fallback
    ip source-address “10.1.5.102” port 2000
    max-ephones 2
    max-dn 8 dual-line
    moh music-on-hold.au
    multicast moh 239.1.1.1 port 16384

    If I am guided by the screenshots of the CUCM the answer would be:
    call-manager-fallback
    ip source-address “10.1.5.10” port 2000
    max-ephones 2
    max-dn 8 dual-line
    moh music-on-hold.au
    multicast moh 239.1.1.1 port 16384

    Port 2000 is by default, this is not necessary.

    1. C, can’t be the correct answer as the Base Multi-cast port is 16384 not 32767. Therefore the only answer possible is A. however the music on hold file needs to be music-on-hold,au (a dot between hold and au)

  2. Must have been having a bad day adding above posts LOL
    The answer is more likely to be A, because the multicast address port number is 16384, However the moh command does need to match the exact file name on flash: of the router which is usually has the extension of .au example: music-on-hold.au
    In addition to this the MOH server will generally be the CUCM MOH server not the SRST router. In the above graphic the suggest the IP address of the MOH server is sitting on the remote LAN and doesn’t match the network diagram, i.e. the diagram states the MOH server is 10.1.1.1, however the CUCM config page states the MOH server is 10.1.5.10

  3. The Correct Answer is C not A. For two reasons :-
    1) the moh file on A should be music-on-hold.au no spaces and a dot before file type
    2) the multicat moh 239.1.1.1 port number needs to be 2000 and 65535

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