A calling party is the person or entity that is initiating a telephone call. There are several synonyms that can be used to refer to the calling party, such as the initiator, the originator, the dialer, the caller, the source, or the messenger. These terms are commonly used in telecommunications and are often interchanged depending on the context and situation. For instance, in the context of conference calls, the term initiator is commonly used to refer to the person who initiates the call and invites other participants to join the conference. Regardless of the term used, the calling party is an essential component of any telephone communication, and the success of the conversation depends on their ability to initiate and maintain a clear and effective connection.