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When user presses the services button, the IP phone displays the "Host Not Found" message

Core Issue

The phone is unable to contact the Cisco CallManager server for its application.


To resolve this issue, perform these steps:

  1. Make sure port 80 is reachable from the phone's subnet. PIX Firewalls have been known to create this error. Make sure the user has a primary extension selected in the User Information > Device Association screen.
  2. Refer to these Cisco bug IDs:
    • CSCdv13176: Messages button with handset offhook generates host not found. For a workaround, press the message button without lifting the handset off the hook.
    • CSCdz47626: IP Phone Services button gives err: host not found after reload. For a workaround, power cycle the phone.
    • CSCdx69898: Tomcat Webserver Port Number is stated incorrectly. For a workaround, use the port number 6293 for the IP phone service in Cisco CallManager.
    • CSCdz40113: Internet Information Server (IIS) stops responding and needs to be reset. For a workaround, reset the web server (IIS).
    • CSCdz56517: CCMUser logon authentication fails when using Active Directory (AD). For a workaround, reset the web server (IIS).
    • CSCdx47467: App engine is not starting because Remote Method Invocation (RMI) port 1099 is being used by the Attendant Console. For a workaround, move the application server or attendant console to another machine.
    • CSCdx24601: Extensible Markup Language (XML) service GET fails when URL contains authentication. For a workaround, do not use the authentication.

Problem Type

IP phones and other clients  (Client registration, faulty IP phone, etc.)

Call control software  (CallManager, CallManager Express, ICS7750, SRST, SS7 call agents)

Call Control


IP Phones and Clients

IP phone error messages

IP phone faulty operation

Failure Type

Bad operational behavior

Error message

Cannot request a service

When Problem Occurs

When pressing services button

End Where Problem is Heard or Device Type Involved

IP phone

Bug ID Number




IP Phone Errors

Host Not Found

IP Phone Components

Services button

Version history
Revision #:
1 of 1
Last update:
‎06-18-2009 04:03 PM
Updated by:
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