A system may receive call setup information associated with a call to be received by a terminating device via a particular untrusted wireless local area network (WLAN). The system may determine location information, associated with the terminating device, based on receiving the call setup information. The location information may include information that identifies the particular untrusted WLAN to which the terminating device is connected. The system may provide the call setup information to the terminating device via the particular untrusted WLAN. The call setup information may be provided to the terminating device based on the location information associated with the terminating device and may be provided to cause a tunnel to be created. The tunnel, when created, may allow the terminating device to receive the call via the particular untrusted WLAN. The system may cause the call to be received by the terminating device via the tunnel and the particular untrusted WLAN.