Major players in the Canadian wireless industry are taking aim at comments made by Virgin Mobile Canada in response to the CRTC’s call for comments (Telecom Public Notice 2005-14) on the implementation of wireless number portability (WNP).  The upstart mobile virtual network operator (MVNO) has been highly critical of the industry’s WNP implementation plan and that has three national operators as well as the wireless industry association on the defensive. Last month, the MVNO wrote in comments to the commission that WNP could become available much sooner than the September 2007 date proposed by PricewaterhouseCoopers (PwC) and supported by the Canadian Wireless Telecommunications Association (CWTA).  Second-round comments saw the facilities-based wireless operators take aim at Virgin’s comments and use its own words to defend the two-year implementation plan. The CWTA notes in a letter to Report on Wireless that despite Virgin Mobile’s attempt to provide alternative approaches and new ideas regarding the implementation of WNP in Canada, the company’s comments support the PwC plan.  The CWTA highlights recommendations from Virgin Mobile that mirror those of the PwC report."Overall, it appears Virgin Mobile’s comments support the approach taken by the PwC plan, and only differ in the amount of time the company believes is required to complete the task. However, no evidence or substantiation for a shorter implementation schedule has been offered," states Peter Barnes, president and CEO of the CWTA.  Rogers Wireless Inc., the country’s largest wireless operator, weighs into the debate in its reply comments to the CRTC proceeding, noting that no party advocating a quicker implementation timeframe has provided evidence that it is possible. The company agrees with the CWTA that Virgin Mobile has effectively supported the PwC WNP deployment schedule.  "Specifically, Virgin’s comments are replete with statements of agreement with a number of significant principles and elements of the PwC plan. For example, Virgin agrees that the plan should avoid customer service disruption and should leverage U.S. experiences, porting processes and testing schedules," reads the submission.  "Rogers Wireless would note that the PwC plan already incorporates the issues raised by Virgin and the time frames developed by PwC include these items."