Hello, I am writing a NetworkExtension VPN using custom protocol and our client would like to able to use 5G network slice on the VPN, is this possible at all? From Apple's documentation, I found the following statement: If both network slicing and VPN are configured for an app or device, the VPN connection takes precedence over the network slice, rendering the network slice unused. Is it possible to assign a network slice on a NetworkExtension-based VPN and let the VPN traffic uses the assign network slice? Many thanks

What are the possible KPI requirements set by Apple AI for cellular networks, e.g. regarding latency, throughput or jitter? What is the expected effect on iPhone energy consumption?

after updating to the ios 18 this morning, i came across an issue where it completely cut off my cellular data and i can't get it back. i tried all the 'solutions' that worked with me before with this issue on past updates -- taking the sim card out, resetting, airplane mode, Finder App to see any updates, but there's nothing. i have enough storage as well. before updating, my cellular data was completely fine and okay, my phone is in good condition as well. now i can't use my phone because after the update it cut off my cellular data and i do not know what to do. any help???

Since ios 18 Beta 4 my celluar connection is unstable. Dropping from full service to none at all. Or just showing Edge speed. Same issues with my eSim as well. Funny thing. Sometimes my eSim has full reception and my regular Sim none at all. Ok. no Internet services anyhow. Was not solved in the iOS 18 Beta 4 rerelase on Saturday. Filed a feedback as FB14486702

We are Telecom company and we are already registered in GSMA We have started testing our product environment and everything has been working smoothly with Android handsets. However, we are facing some challenges with iPhone handsets. We only use IPV6 for UE addresses allocation and we are seeking your support and guidance on how to register our MVNO MCC and MNC in the iPhone carrier file. Your assistance in this matter would be greatly appreciated.

There is new porperty introduced in iOS 18 Beta for VPN i.e CellularSliceUUID But there is no description available for the same. Could you please let us know how this property can impact VPN? https://developer.apple.com/documentation/devicemanagement/vpn?changes=latest_major&language=objc

Initially, my task was to determine which type of connection is being used at the moment: 5G or 4G. And I found "CTTelephonyNetworkInfo().serviceCurrentRadioAccessTechnology" but there is a problem when the device has more than one sim. My iPhone has two sims, one physical and one electronic. I need to determine which one is used to access the network. I tried to use "CTTelephonyNetworkInfo().serviceCurrentRadioAccessTechnology" but it is a dictionary [String: String] that only indicates the connection of each of the cards, and it is not possible to find out which one is active from this dictionary. So how can I determine which of the two cards are currently being used to access the Internet?

I am currently developing two iOS applications that require peer-to-peer connectivity. To facilitate this, I've implemented NWListener and NWConnection in both apps for network communication. To determine each device's public IP address and port—necessary for establishing a connection over the internet through my mobile operator's Carrier-Grade NAT (CGNAT)—I'm using a STUN server. Despite successfully retrieving the external IP addresses and ports for both devices, I am unable to establish a peer-to-peer connection between them. My current setup involves initiating a connection using the public addresses and ports discovered through the STUN server response. However, all attempts to connect the devices directly have been unsuccessful. I am seeking guidance on whether there are additional considerations or specific configurations needed when using NWListener, NWConnection, and a STUN server to establish a direct connection between devices in a CGNAT environment. Is there a particular step or network configuration I might be missing to successfully connect both iOS devices to each other using their external network details?

I'm developing an iOS app for video playback using the external library vlc-ios, Prior to iOS17, I was able to achieve streaming playback of mp4 files hosted on a server using the vlc-ios librarys's HTTP POST method. However, after iOS17, this streaming playback no longer functions. Upon inspecting the logs, there were no traces of vlc-ios receiving data from iPhone device. Does anyone know the cause of this issue? Additionally, the occurrence condition is when the environment is iOS17 and the sim's 5G communication is enabled.