Service cards
A DTMF service provider may send DTMF sequences to its subscribers in the
form of a service card that can be stored in the Contacts directory. For more
information on DTMF tones, see ”To send DTMF tones” on page 152.
Service cards
A DTMF service provider may send DTMF sequences to its subscribers in the
form of a service card that can be stored in the Contacts directory. For more
information on DTMF tones, see ”To send DTMF tones” on page 152.