One customer whose premise-based IVR systems were supported by PSS also had some other IVR applications that were hosted and supported by Tellme.   They called PSS after hours for help with some problems the Tellme application was experiencing.  Instead of sending the customer back to Tellme to get support, PSS called Tellme directly and started troubleshooting together.  It took most of the night to diagnose what turned out to be a network problem, but the problem was soon corrected and the customer's application was again functioning normally. 

Because PSS took responsibility for finding a solution to the problem, the customer didn't have to worry about whether it was a PSS problem, a Tellme problem, or a carrier problem.