To enable longer call recordings in GVP, you need to change the configuration value in GVP and procedure is as follows:
1. Open IIS.
2. Right-click the server, and then select Properties.
3. Select the Enable Direct Metabase Edit check box, and then click OK.
4. Open the MetaBase.xml file, which is located in “C:\WINNT\System32\Inetsrv”
5. Locate the line AspMaxRequestEntityAllowed, and change it to 524288000.
Please note that the above steps was tested in IIS 6.0 version and above
