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HSDPA Standard At Commands Page 41 of 60 Version 1.2
related context. Since this is the same parameter that is used in the +CGDCONT and
+CGDSCONT commands, the +CGTFT command is effectively an extension to these commands.
The Packet Filters consist of a number of parameters, each of which may be set to a separate
value.
A special form of the set command, +CGTFT= <cid> causes all of the Packet Filters in the TFT for
context number <cid> to become undefined. At any time there may exist only one PDP context
with no associated TFT amongst all PDP contexts associated to one PDP address. At an attempt
to delete a TFT, which would violate this rule, an ERROR or +CME ERROR response is returned.
Extended error responses are enabled by the +CMEE command.
The read command returns the current settings for all Packet Filters for each defined context.
The test command returns values supported as a compound value. If the MT supports several
PDP types, the parameter value ranges for each PDP type are returned on a separate line. TFTs
shall be used for PDP-type IP and PPP only. For PDP-type PPP a TFT is applicable only when IP
traffic is carried over PPP. If PPP carries header-compressed IP packets, then a TFT cannot be
used.
Table 30. + CGTFT parameter command syntax
Command Possible response(s)
+CGTFT=[<cid>,
[<packet filter
identifier>,
<evaluation
precedence index>
[,<source address and
subnet mask>
[,<protocol number
(ipv4) / next header
(ipv6)>
[,<destination port
range> [,<source port
range> [,<ipsec
security parameter
index (spi)> [,<type
of service (tos)
(ipv4) and mask /
traffic class (ipv6)
and mask> [,<flow
label (ipv6)>
]]]]]]]]]
OK
ERROR