name: WIC
full_form: WebRTC IMS Client
context: This solution reuses the TURN long-term credential method defined in RFC 8656 [78] , but the credential is dynamically provisioned by eP-CSCF via the signalling channel. When WIC registers to IMS, WIC requests the IMS networks to provision a credential for TURN authentication using a 3GPP extension header. If the request is authenticated and authorized, eP-CSCF generates a TURN credential, including user id, password, expiration, etc, and sends the credential to WIC in the response message. Since the signaling messages between WIC and eP-CSCF are protected by the secure protocols, e.g. secure Websocket, the TURN credential is securely transferred to WIC. The WIC retrieves the credential and uses it in subsequent TURN allocation requests. The WIC may request TURN credential for every registration, or use the credential until it expires. WIC can also use other signaling messages such as OPTION to request a new credential at anytime before re-registration. This method requires some
description: The WebRTC IMS Client (WIC) connects to the IMS network using WebRTC technology for real-time communication. It interacts with the eP-CSCF for TURN credential provisioning and authentication.
explanation: The WIC is described as a device that connects to the IMS network and interacts with network elements like the eP-CSCF, indicating its role as a telecommunications device.
section_title: X.5.2.1	Overview
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biotag_Description: O,B-Device,I-Device,I-Device,O,O,O,O,B-Network,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O,O