venkat,
I found this information easily by searching the command reference manual that is online on Quintum’s web site under the customer service area at; http://www.quintum.com/support/products/2G/tenor_2G/sysdoc/webhelp/quintum_tenor_guide.htm
the command is;
config-VOIPNetwork-1* setfactory
You may want to try searching for this in the future as it will give you your answer quicker.