The E.164 format offers numerous advantages, but must usually be set manually. In the case of merged accounts and extensions of number blocks, signaling is always in E.164.

Especially when setting up phone numbers in PBX systems, the conversion to E.164 is worthwhile, as it simplifies uniform routing of all calls.

More about the two modes:  Phone number formatting for incoming calls

How to change the mode for incoming calling line identification

1. Übersicht der Rufnummern aufrufen

2. Rufnummer auswählen

Rufnummernverwaltung Überblick mit drei Rufnummern, darunter ein 10er-Rufnummernblock

Expand the detailed view of the phone number you want to customize.

3. Einstellungen aufrufen

Übersicht der SIP-Trunk-Einstellungen bei Easybell mit aktiver Rufweiterleitung, Sperrlisten und Parallelruf

You can make numerous adjustments for each phone number.

Use the pencil icon on the right-hand side to access the settings for the respective function.

3. Choose signaling mode

Now you have the choice between the two modes "E.164 format (recommended)" and "International format".

Finally, please click on "Apply" to complete the process.

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Created on: 10. July 2025