GSM02.07
From Openmoko
The GSM 02.07 specification (Version 7.1.0 Release 1998) lists a table of required and optional features of MS (mobile stations):
1.1 Display of Called Number M*
1.2 Indication of Call Progress Signals M*
1.3 Country/PLMN Indication M*
1.4 Country/PLMN Selection M
1.5 Keypad O (note 1)
1.6 IMEI M
1.7 Short Message M (note 4)
1.8 Short Message Overflow Indication M
1.9 DTE/DCE Interface O
1.10 ISDN "S" Interface O
1.11 International Access Function ("+" key) O (note 1)
1.12 Service Indicator M*
1.13 Autocalling restriction capabilities (note 2)
1.14 Emergency Calls capabilities M (note 3)
1.15 Dual Tone Multi Frequency function (DTMF) M (note 5)
1.16 Subscription Identity Management M
1.17 On/Off switch O
1.18 Subaddress O
1.19 Support of Encryption A5/1 and A5/2 M
1.20 Short Message Service Cell Broadcast M
1.21 Short Message Service Cell Broadcast DRX O
1.22 Service Provider Indication O
1.23 Support of the extended SMS CB channel O
1.24 Support of Additional Call Set-up MMI Procedures O
1.25 Network Identity and Timezone O
1.26 Ciphering Indicator M*
1.27 Network's indication of alerting in the MS O (NI Alert in MS)
1.28 Network initiated Mobile Originated connection O
1.29 Support of Localised Service Area O
1.30 Support of GPRS Encryption M (note 6)
* Mandatory where a human interface is provided, i.e. may be in-appropriate for MS driven by external equipment.
NOTE 1: The physical means of entering the characters 0-9, +, * and # may be keypad, voice input device, DTE or
others, but it is mandatory that there shall be the means to enter this information.
NOTE 2: MTs with capabilities for Autocalling, or to which call initiating equipment can be connected via the "R"
or "S" interface, shall restrict repeated call attempts according to the procedures described in annex A.
NOTE 3: Emergency calls shall be possible according to Teleservice 12 (see GSM 02.03 [2] and GSM 02.30 [7]).
This feature is only required to be provided by ME supporting Telephony.
NOTE 4: Support of reception by the ME and storage of SMS MT in the SIM is mandatory, but its display is
optional. Reception and storage of a message shall be indicated by the MS.
NOTE 5: The use of DTMF is only mandatory when the speech teleservice is being used or during the speech phase
of alternate speech/data and alternate speech/facsimile teleservices.
NOTE 6: The implementation of GPRS encryption algorithm is mandatory for terminals supporting GPRS.
Contents |
GTA01 implementation of [required] features
So how do we make sure we follow the mandatory requirements?
1.1 Display of Called Number
No problem here.
1.2 Indication of Call Progress Signals
This basically means that the user has to be informed about call initiated, other party ringing, busy, etc. Those audible signals are handled by the TI Calypso.
NOTE: Call progress indicators are described in GSM 02.40 [8]
1.3 Country/PLMN Indication
We need to display the country and the currently selected network operator, as well as the list of available other operators. No problem here.
NOTE: The indication is described in GSM 02.30 [7].
1.4 Country/PLMN Selection
We need to support operator selection. No problem here. Has to comply with GSM 02.11 [4].
1.6 IMEI
In TI Calypso.
1.7 Short Message
We need to support SMS 'properly', i.e. display it to the user, and acknowledge reception to the GSM network. Sending, too ;)
1.8 Short Message Overflow Indication
The user has to be told if his SMS memory overflows.
1.12 Service Indicator
?
1.13 Autocalling restriction capabilities
I suppose this has already been implemented in the TI Calypso GSM firmware, since otherwise it in itself would not be GSM compliant.
