I recieved a call from that number, he was talking about sex, he was faking trying to make a hotel room reservation but then he put me on hold and start talking with some lady called Pam, he said his name is Jerry Williams (It must be a fake name)
This caller phones and asks for a quotation but then is 'interrupted' by another call and asks to put you on hold. He then pretends to take a call from his 'girlfriend' and engages in a very sexually explicit conversation. He usually comes back as if nothing went on and you really were on hold the whole time.