Defined Values; Examples - Huawei MU509 At Command Interface Specification

HUAWEI MU509 HSDPA LGA Module
AT Command Interface Specification
A special SET command "+CGDCONT= <cid>" will clear all parameters in the setting
environment indicated by <cid>.
The READ command returns all the parameter values of the defined setting
environments. The setting environments are displayed by means of linefeed.
The TEST command returns values supported as a compound value. If the MT
supports several PDP types, <PDP_type>, the parameter value ranges for each
<PDP_type> are returned on a separate line.

8.1.3 Defined Values

<cid>:
1–16: Index value of PDP setting environment. Other PDP-related commands can be
used for invoking the storage position through this index value.
<PDP_type>: string value. It indicates the type of the packet switching protocol.
"IP": IP protocol
"PPP": Point-to-Point protocol
<APN>: string value. It indicates the access point domain name of the connected
GGSN or external network. The max len is 100.
<PDP_addr>: string value. It indicates the address of MSl.
<d_comp>: a numerical value, controlling the compression of PDP data.
0: No compression
1: Compression.
2: V.42bi (reserved, not supported currently)
If no <d_comp> is included, it is equivalent to the effect that the <d_comp> is 0.
<h_comp>: a numerical value, controlling the compression of PDP header.
0: No compression
1: Compression
2: RFC1144 (applicable for SNDCP only) (not supported currently)
3: RFC2507 (reserved, not supported currently)
Other values are reserved.
If no <h_comp> is included, it is equivalent to the effect that the <h_comp> is 0.

8.1.4 Examples

After executing the following commands consecutively, the results are as follows:
1.
Issue 04 (2013-01-28)
Command 1: AT+CGDCONT=?
Result 1:
+CGDCONT: (1-16),"IP",,,(0-2),(0-3)
+CGDCONT: (1-16),"PPP",,,(0-2),(0-3)
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