Philips 330 manual Other operator services, GSM strings

11 • Other operator

services

Most items of the Operator Services menu (e.g. Service numbers, Services +) are subscription-dependent and specific to operators: your mobile phone readily sup- ports them if they are included in your subscription. Consequently, the menus shown opposite may or may not be available. Contact your network operator for detailed information on availability and rates.

The services provided may involve making a phone call or sending a SMS for which you may be charged

GSM strings

The phone supports standard GSM strings that can be sent from the keypad to the network and used to acti- vate services provided by the network.

•Example n° 1

Press *43#, then (, to activate the Call Waiting service.

•Example n° 2

Press *#31#, then (, to know if the mobile identification has been sent.

•Example n° 3

Press *61#, then (, to activate the fea- ture call forward if no reply.

•Example n° 4

Press *62#, then (, to activate the fea- ture call forward if unreachable.

Contact your network operator for detailed informa- tion on GSM strings.

Query a voice server, voice mailbox, messaging service, etc. (DTMF tones)

Some phone services (such as phone answering ma- chines and pagers) require your phone to transmit DTMF tones (Dual Tone MultiFrequency), also known as “touch tones”. These are used to communi- cate passwords, callback numbers, caller choices, and so on.

You can send DTMF tones at any time during a call by pressing any of the keys 0to 9, *and #. You can also attach a DTMF sequence to a phone number before dialling it (or storing it in the Phone- book). The phone number and the DTMF part must be separated by a wait character.

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