Error Message: "Your Network Is Configured Such That You Can Not Make Phone Calls" with ZoneAlarm (320783)


The information in this article applies to:

  • Microsoft Windows Messenger 4.6
This article was previously published under Q320783

SYMPTOMS

When you try to dial a phone number in Windows Messenger version 4.6, you may receive the following error message:
Your network is configured such that you can not make phone calls.

CAUSE

This behavior may occur if you are running the Zone Labs "ZoneAlarm" program. By default, ZoneAlarm blocks the "echo protocol" that Windows Messenger uses to determine whether the PC to Phone service will work.

RESOLUTION

To work around this behavior, configure ZoneAlarm to permit outbound traffic to e450.voice.microsoft.com. For information about how to configure ZoneAlarm, view the documentation that is included with ZoneAlarm.

STATUS

This behavior is by design.

MORE INFORMATION

The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.
Modification Type:MajorLast Reviewed:6/13/2002
Keywords:kb3rdparty kberrmsg kbprb KB320783
©2002 Microsoft Corporation. All rights reserved.