Microsoft KB Archive/890305

= A sender does not receive a status code 302 response after a message is sent to an RTC 1.3 Client program in Live Communications Server 2005 =

Article ID: 890305

Article Last Modified on 5/30/2007

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APPLIES TO


 * Microsoft Office Live Communications Server 2005 Enterprise Edition
 * Microsoft Office Live Communications Server 2005 Standard Edition

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SYMPTOMS
After you create a program that uses the Microsoft Real-time Communications (RTC) Client version 1.3 API, you may experience the following symptoms.

Consider the following scenario:
 * You create a program that uses the RTC Client version 1.3 API.
 * The program is configured with multiple end points or devices.
 * The program is configured to forward calls from one end point to another location.
 * Another user sends an INVITE request to this program's user.

In this scenario, the sender's program does not receive a status code 302 response, a session forward-request response. Instead, after two minutes, the INVITE request times out.



CAUSE
This issue occurs because the calls remain in an &quot;InProgress&quot; state with the remaining end points if the following conditions are true:
 * Your program is configured with multiple end points.
 * One of those end points is configured to forward calls to another location.

These calls remain in an &quot;InProgress&quot; state for up to one hour. After one hour, the sender times out. In this scenario, the server does not send the 302 response to the sender.



RESOLUTION
To resolve this issue, configure the other end-points to reject the call. In this scenario, you must configure your program to determine whether to forward the calls or whether to fork the calls to multiple end points.



MORE INFORMATION
For additional information about the RTC Client, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/aa286551.aspx

For additional information about how to obtain the RTC Client API, visit the following Microsoft Web site:

http://www.microsoft.com/downloads/details.aspx?FamilyId=C3A7BD15-FD1C-4BF7-A505-3F8FAF1E120A&displaylang=en

Additional query words: LCS 2005 RTC IM

Keywords: kbtshoot kbprb KB890305

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