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WAP Push MMS
Port 2948 handles WAP Push Multimedia Messaging Service (MMS) communications over both TCP and UDP. It is primarily associated with delivering multimedia content to mobile devices in cellular networks. This port facilitates the transmission of rich MMS messages — including images, videos, and audio — by leveraging Wireless Application Protocol (WAP) push mechanisms..
WAP Push Multimedia Messaging Service (MMS) running over port 2948 was designed to facilitate the delivery of rich multimedia content across mobile networks. It uses the Wireless Application Protocol (WAP), which defines standards for Internet communication over wireless cellular networks, optimized for devices with limited bandwidth and resources.
Technically, WAP Push enables content providers to send service indication or service loading messages to devices, triggering actions such as fetching an MMS from an MMS center (MMSC). The mechanism typically involves sending a specially formatted push message that includes a URL pointing to the multimedia content. When received, the mobile device processes the push message, prompts the user, or automatically retrieves the accompanying MMS based on configuration and user preferences.
Port 2948 handles WAP Push over both UDP and TCP, balancing quick delivery (via UDP) with the need for reliable acknowledgments (via TCP) in certain contexts. While once widely used, especially on 2G/3G networks during the early mobile Internet era, modern LTE and 5G networks tend to use more evolved IP-based messaging protocols, reducing reliance on WAP.