AASTRA 600d for Aastra 800 and OpenCom 100 User Guide EN - Manual (Page 112)

The Device Menu
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Melodies: Different call types can be signalled using different melodies. Select
one of the following entries. To change the currently selected melody,
press the Edit softkey. You can listen to the melody before saving via
the
softkey. There are 44 polyphonic MIDI ring melodies, 8 normal
ringing tones and 7 alarm sounds available.
Internal: Select melody for internal calls.
If there are multiple trunk keys configured on your telephone,
you can configure a melody for each trunk key. Select the desired
key, e.g. L1: [internal call number], and then press the
Ok softkey. Under Internal select the melody for internal calls to
this trunk key.
External: Select melody for external calls.
If there are multiple trunk keys configured on your telephone,
you can configure a melody for each trunk key. Select the desired
key, e.g. L1: [internal call number], and then press the
Ok softkey. Under External select the melody for external calls to
this trunk key.
Unknown number: Selects the melody for incoming calls without
transferred call number.
If there are multiple trunk keys configured on your telephone,
you can configure a melody for each trunk key. Select the desired
key, e.g. L1: [internal call number], and then press the
Ok softkey. Select the melody for calls without transferred call
number to this trunk key.
Text Message: Selects the melody upon reception of new short mes-
sages.
VIP call: Selects the melody for incoming VIP calls (call numbers on your
VIP list, see page 48).
SOS call: Selects the melody for incoming emergency calls.
Alarm clock: Selects the melody for the alarm clock.
Appointment: Selects the melody for the appointment.
Type: This setting is where you determine how selected melodies are signalled.
Repeat: The melody is played repeatedly as long as the call is signalled.
Single: The melody is played only once.