(They can call a third party one time only and only for "location information" which means your home address, home telephone number, and place of employment)
The reason why this answer is "No" is because the collector already has your "location information" because your account went through an electronic batch skip tracing protocol prior to it being assigned to the collection phone floor! They're just trying to pressure you (illegally) to pay.
This is one of the most common illegal collection tactics, and making matters worse for themselves, collectors will often tell that aunt, cousin, neighbor, or friend "I need to get an important message to ..." without even asking for any location information.
If this is happening to you, don't get embarrassed - get justice.