I think the same thing just happened to me. There was a missed call with "UBS Financial S" as the caller ID. No message.

Same here very irritating.

received a call from this number today, asking for my boss by his full name.  the caller ID said "UBS Financial Services."  when i asked who was calling, he said "This is Mark Gillen," and when i asked him to repeat his last name (i thought he said Allen) he said "Gillen" and spelled it for me, then i heard a beep like someone pushing a button on the phone and we were disconnected.  interesting tactics, but in the end, it's still reception 1 - cold caller 0....

Calls for attorneys CONSTANTLY and will hang up if you answer 'so and so's office'.  Very, very annoying...

Received a missed call with no message