Let me just kind of wrap the discussion below.
Karachi, Islamabad and Lahore are all ideal locations for International Call Centers.
About sharing best practices within the industry CCAP was set up and was supposed to be the forum however it is not functional at this point in time.
PSEB and Ministry of IT and Telecom are aggressively working on ITeS and BPO companies’ standardization and quite a few training and workshops are being held; Shahid Azim-CEO of one of the largest call centers here-is responsible for influencing the Government(PSEB and Ministry) for this standardization effort.
In Islamabad we have issues of females working in the night-they actually get better paying day time jobs-and in Lahore the situation is more flexible and in Karachi there may be no problem at all once ITeS/BPO/Contact Center culture becomes more common in Karachi.