How To Fix T5106 - Dialed number &1 could not be assigned to a telephony server

SAP Error Message - Details

• Message type: E = Error

• Message class: T5 - SAPphone: Messages for telephony

• Message number: 106

• Message text: Dialed number &1 could not be assigned to a telephony server

What causes this issue?

The called number &V1& was converted to number &V2& according to the
conventions for number conversion in the case of inbound calls. This
number was compared with the number prefixes of all known telephony
servers. No matching entries were found.
There are a number of possible causes:
The called number was entered incorrectly or transferred incorrectly by
the telephone system.
The rules for number conversion for inbound calls have been maintained
incorrectly.
The number prefixes of the sites have been maintained incorrectly.

System Response

Without a telephony server ID, the extension number and therefore the
work center and the user cannot be determined.

How to fix this error?

You should check the called number.
You should check the rules for number conversion in the case of inbound
calls.
You should check the number prefixes of the sites.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message T5106 - Dialed number &1 could not be assigned to a telephony server ?

  The SAP error message T5106, which states "Dialed number &1 could not be assigned to a telephony server," typically occurs in the context of SAP's integration with telephony systems, particularly when using the SAP Telephony Integration (CTI) framework. This error indicates that the system is unable to route a call to the specified dialed number because it cannot find a corresponding telephony server that can handle that number.
  Causes:
  
  Configuration Issues: The telephony server may not be properly configured in the SAP system. This includes missing or incorrect settings in the telephony integration configuration.
  Dialed Number Not Mapped: The dialed number may not be mapped to any telephony server in the system. This can happen if the number is not included in the telephony server's configuration.
  Telephony Server Down: The telephony server that is supposed to handle the call may be down or not reachable.
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the telephony server.
  Authorization Issues: The user or system may not have the necessary permissions to access the telephony server.
  
  Solutions:
  
  
  Check Telephony Server Configuration:
  
  Ensure that the telephony server is correctly configured in the SAP system. This includes checking the settings in transaction code SICF for the telephony service and ensuring that the server is active.
  Verify that the dialed number is correctly mapped to the telephony server in the configuration.
  
  
  
  Verify Dialed Number:
  
  Check if the dialed number is valid and correctly formatted. Ensure that it matches the expected format for the telephony server.
  
  
  
  Check Telephony Server Status:
  
  Ensure that the telephony server is up and running. You may need to restart the server or check its logs for any errors.
  
  
  
  Network Connectivity:
  
  Test the network connection between the SAP system and the telephony server. Ensure that there are no firewalls or network issues blocking the connection.
  
  
  
  Review Authorizations:
  
  Check the user authorizations to ensure that the user or system has the necessary permissions to access the telephony server.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for telephony integration for any specific configuration steps or troubleshooting tips related to your version of SAP.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Telephony Integration Documentation: Review the official SAP documentation on telephony integration for detailed configuration and troubleshooting guidance.
  
  By following these steps, you should be able to identify and resolve the issue causing the T5106 error message in your SAP system.