Configuring Simultaneous Data Connections
The RIL proxy and the Connection Manager supports simultaneous GPRS connections over PPP. This means that multiple APNs can be simultaneously configured for use. Each GPRS connection is associated with a PDP context. The number of supported PDP contexts, and therefore the number of supported simultaneous GPRS connections, must be configured in the registry.
The Contexts setting of the HKEY_LOCAL_MACHINE\Comm\Cellular\RIL registry key must be set to a value greater than one to enable simultaneous connections. If this setting does not exist, or if it is less than or equal to one, the Connection Manager and the RIL proxy cannot use simultaneous GPRS connections or multiple APNs.
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