doc: net: Add information about GSM modem support
General information about GSM modem added. Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
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doc/reference/networking/gsm_modem.rst
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doc/reference/networking/gsm_modem.rst
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.. _gsm_modem:
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Generic GSM Modem
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#################
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Overview
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********
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The generic GSM modem driver allows the user to connect Zephyr to a GSM modem
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which provides a data connection to cellular operator's network.
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The Zephyr uses :ref:`PPP (Point-to-Point Protocol) <ppp>` to connect
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to the GSM modem using UART. Note that some cellular modems have proprietary
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offloading support using AT commands, but usually those modems also support
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3GPP standards and provide PPP connection to them.
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See :ref:`GSM modem sample application <gsm-modem-sample>` how to setup Zephyr
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to use the GSM modem.
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The GSM muxing, that is defined in
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`GSM 07.10 <https://www.etsi.org/deliver/etsi_ts/127000_127099/127010/15.00.00_60/ts_127010v150000p.pdf>`__,
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and which allows mixing of AT commands and PPP traffic, is not supported in
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this version of Zephyr.
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@ -12,4 +12,5 @@ Networking
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protocols.rst
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system_mgmt.rst
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tsn.rst
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can.rst
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can.rst
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gsm_modem.rst
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@ -36,6 +36,7 @@ supports only these protocols:
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See also the :zephyr_file:`samples/net/sockets/echo_server/overlay-ppp.conf`
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file for configuration option examples.
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For using PPP with GSM modem, see :ref:`gsm_modem` for additional information.
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Testing
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*******
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