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Introduction

Here we would like to describe what happens when you update from an software < 2.26 to software 2.26.x or higher.

You need to take some actions to use the new functionality. 


N.S. = Not supported

* = Default tone played when header is not recognized. (Default tone can be changed from software 2.29.0 or higher)

CallHandset
Selected melodies in handset example

Software< 2.26after update to 2.29
no new handset registration
after update to 2.29
with new handset registration

Handset 1
R 650 H PRO

Internal ringtoneCall 3Call 3Call 3

In software < 2.26, the system supports 2 ringtones.

  1. Internal (Only played when the Alert-Info header in the SIP Invite is recognized "alert-internal")
  2. External (Played in all other cases.)

After the update to the software that supports the new ringtones the following happens.

  • The DECT handsets will show the ringtones from the older software and not the new ringtones, but it will use the new ringtones. 
    • In the example, Handset 1 will show the Dunken ringtone but plays the Call 1 tone
    • Handset 2 will show 07 Super 4 but plays the 09 Tone One

The following solutions are possible.

  1. Disable the new distinctive ring feature and it will work like before using the 2 ringtones (Internal and External)
  2. Re-register your DECT handset and then the new ringtones are visible. Re-registration can be done:
    1. Manual re-registration
    2. Automatic re-registration (New in 2.29.0)


The DECT handset menu is transferred during the DECT registration process. With the new distinctive ring feature, the DECT handset menu is changed but you will only see this when the DECT handset is new registered. Therefore new DECT registration is needed.

External ringtoneDunken*Dunken shown but → is played.Call 1 *
Group CallsN.S.Not visibleCall 2
Door stationN.S.Not visibleCall 3
EmergencyN.S.Not visibleCut
OptionalN.S.Not visibleNot visible
All callsN.S.Not visibleCustom

Handset 2

SL 750H

Internal ringtone16 Evolve16 Evolve16 Evolve
External ringtone07 Super 4*07 Super 4 shown but → is played.09 Tone One *
Group CallsN.S.Not visible10 Step to B
Door stationN.S.Not visible15 Dunken
EmergencyN.S.Not visible14 Piano
OptionalN.S.Not visibleNot visible
All callsN.S.Not visibleCustom
Handset 3 R 650 H PRO




Internal ringtoneCutCutCall 3
External ringtoneCall 2*Call 2 shown but →
is played.
Call 1 *
Group CallsN.S.Not visibleCall 2
Door stationN.S.Not visibleCall 3
EmergencyN.S.Not visibleCut
OptionalN.S.Not visibleNot visible
All callsN.S.Not visibleCustom
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