Dual Card Dual Standby Single Pass (Dual-Sim Devices Only) - Huawei NEO-L29 Quick Start Up Manual

Dual Card Dual Standby Single Pass
(dual-SIM devices only)
Your device supports only dual card dual standby single pass, which
means you cannot use both SIM cards for calls or data services
simultaneously.
When you are on a call using SIM card 1, SIM card 2 cannot be used
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to make or answer calls. If someone calls SIM card 2, the caller will
hear a voice message similar to "The subscriber you dialed is out of
the service area" or "The subscriber you dialed cannot be connected
for the moment, please try again later." The actual message will vary
by service provider.
When you are using SIM card 1's data service, SIM card 2's data
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service will be disabled.
Your device's single pass feature helps reduce power consumption and
increase your device's standby time. It is not related to your service
provider's network conditions.
You can go to Settings > Wireless & networks > Dual SIM settings,
and enable Enable call forwarding between SIMs to avoid the
conflicts mentioned above.
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