How To Fix T5100 - No area code can be selected - no telephony server maintained

T5100 - Overview

• Message type: E = Error

• Message class: T5 - SAPphone: Messages for telephony

• Message number: 100

• Message text: No area code can be selected - no telephony server maintained

What causes this issue?

You can only select an area code which is assigned to a telephony server
maintained in the SAP system. However, no servers are currently
maintained in the system.

System Response

You cannot enter an area code. You can enter your extension number. Your
work center settings will then be saved in incomplete form and can be
completed at a later date by selecting 'SAPphone -> Settings
(extended)'.

How to fix this error?

Inform your system administrator and ask for a telephony server to be
created.

Procedure for System Administrators

Call SAPphone system administration to create a telephony server.

Error message extract from SAP system. Copyright SAP SE.

T5100 - Details

• The SAP error message T5100, "No area code can be selected - no telephony server maintained," typically occurs in the context of SAP's telephony integration, particularly when using the SAP Business Communication Services (BCS) or similar telephony solutions. This error indicates that the system is unable to find a valid telephony server configuration to process the area code for dialing.
  
  Cause:
  
  Missing Telephony Server Configuration: The most common cause of this error is that the telephony server has not been configured in the SAP system. This means that the system does not know which telephony server to use for making calls.
  Incorrect Area Code Settings: If the area code settings are not properly defined or if the area code does not match any configured telephony server, this error can occur.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to access the telephony server settings.
  
  
  Solution:
  
  
  Configure Telephony Server:
  
  Go to the SAP transaction code