Remote support SAPOSS - Connection Type WTS

There is more popular procedure known as R/3 support wherein the SAP support remotely connects to the customer throught SAPGUI but if the SAP server is down then WTS (Windows Terminal Server) connections needs to be opened.
How to :
SAP Note : 605795

Points to remember :
1. Please maintain the following line in the SAProuttab:
KP "p:CN=sapserv2, OU=SAProuter, O=SAP, C=DE" (IP-Address) 3389
PLEASE NOTE!!!!The "*" is a wildcard for all ports within 3200 and 3299. All otherports must be specified with their own lines.
When you make changes to saprouttab please run "saprouter -n" toreload the new saprouttab. You may also restart the router.

2. The connection needs to be re-established again from scratch (the SAProuter should come to disconnect state), otherwise, you may get error like :
route permission denied sapserv2 to (IP address of machine), (Port Number) Location: SapRouter on hostname(of machine where saprouter is running)
The above error can also come if the host entry is not maintained in saprouttab file as given above.