Example systems, methods, and logic are provided herein for detecting a numerical identifier of an endpoint. In one example, a connectivity manager establishes a wireless communication session with a fixed endpoint using a wireless communication protocol. The connectivity manager module then generates a Phone Book Access Profile (PBAP) request to download a phone number associated with the fixed endpoint. The connectivity manager module receives, via the wireless communication session, a PBAP response comprising a phone number identifying the fixed endpoint and inputs the phone number identifying the fixed endpoint into a field used for initiating a call to the fixed endpoint.