The intention is a "placeholder" on my calling card until the actual ring starts.

Sometimes mobiles take quite a while to start ringings, and sometimes numbers keep timing out - I'd like to give an audio-feedback that the process is indeed working.

I know I can easily start the ringing right away, but I don't want to do that because it gives the impression that the call is actually going through, which may not be the case.

I don't see anything that immediately apparent on the wiki - any suggestions?

Thanks,

-Avi