(Optional) Configuring an APN Profile (A Single SIM Card and Dual APNs)
Context
An access point name (APN) identifies an external PDN network (for example, the Internet or IMS network) that users want to access.
You can create an APN profile to configure APN. In the scenario where a single SIM card and dual APNs are available, create two APN profiles and bind the APN profiles respectively to the two LTE channel interfaces configured for an LTE cellular interface. One APN connects to the Internet for data communication, and the other connects to the IMS network for VoIP communication.
Procedure
- Create an APN profile.
You need to repeat this step to create multiple APN profiles for accessing different external PDN networks.
- Enable the multi-APN function.
- Bind the APN profiles to the LTE channel interfaces.
You need to repeat this step to bind APN profiles to another LTE channel interface.
Follow-up Procedure
The two APNs share uplink bandwidth on the LTE cellular interface. QoS is required to schedule services based on APNs. For example, if one APN is used to transmit voice services and the other APN is used to transmit data services, voice services must be transmitted with a higher priority. You must configure QoS on the LTE cellular interface to ensure that voice services are preferentially scheduled. For details on how to configure QoS, see NetEngine AR Configuration Guide - QoS