Tone on hold means that there is a config issue.
Things to check for Multicast tone on Hold:
n1.Check Multicast Configuration
n2.Incorrect Audio source id specified by holding party
n
n3.Held party doesn’t have an MRGL with MOH resource
n4.Multicast not enabled at audio source/MOH server/MRG
n
nCheck region setting between MOH server (g.711) - held party(g729)
Could you please clarify the following:
Is MOH working for calls in the same site ? calling and called party at the same site ?
Is MOH working for calls between main site and remote site ?
-Sajjit