[Asterisk-Users] Music on hold disappears for Dial(, m) when calling outside numbers

[Lars Dybdahl]

My asterisk is purely connected to the outside world via SIP.

When I use Dial() with the m-option, that should ensure music-on-hold,
it works perfectly as long as I am calling a SIP number, but when I
call a mobile phone, the music-on-hold disappears.

Any ideas on the cause of this or how to fix this?

Lars Dybdahl.