Network ports for MOH?

[shikamarunara]

I need to find which network ports to open on an ACL to allow MOH to pass through.  Currently, on our wireless network, I am able to route RTP properly between endpoints, but MOH can not be heard (MOH is configured properly, it works fine on the wired infrustructure).  We are using unicast.

[phooghen]

MoH is just RTP traffic but in one direction i.e. from MoH source to the phone. Therefore opening RTP ports should be enough (16384 - 32767 / UDP)

Which codec do you use on the Wireless ?

If you have different codec type, you need transcoders resources.

Pierre.

[shikamarunara]

G711 and G729 are the only codecs used, G711 for MOH.  However, never heard of a need to asdjust wireless for this consideration.  RTP can be handled between phone endpoints, but I guess a good place to look for any ACL issue is whether UDP 16384 - 32767 is allowed between the MOH server and a wireless phone.