See the following Document for current process…

OBF Wireless Committee Issue # 2910

The OBF Wireless Workshop has learned that some implementations of the Wireless Intercarrier Communications Interface Specifications, (WICIS), may automatically kick off SOA/NPAC activity prior to the full customer validation process being completed. When a confirmed Port Response is sent for a Supplement Type 2 request, which only changes the Due Date or Time, prior to confirming the original port request or Supplement Type 3 (other), the SOA/NPAC activity may begin pre-maturely. We ask that the following recommendation be added to the WNPO Decision Matrix as an operational guideline to assist in limiting inadvertent ports.

Recommendation Title: Limit the usage of a Supplement Type 2.
 
A Supplement Type 2 should not be sent unless the NSP has received a confirmed response to the original port request or subsequent Supplement Type 3. If the original request or a Supplement Type 3 has not been confirmed, the only viable Resolution Required Response Type is RT="R" (Resolution Required), and the only valid RCODEs (Response Codes) would be:

 1M - Requested Due Date less than Published interval
 1N - Due date and time can not be met
 6E - Due date can't be met 
 6F - Due Time can't be met
 1P - Other  (remarks must be DD/T specific). 
A Supplement Type 3 should be utilized by the New Service Provider to convey any change in the requested Due Date & Time, when they have not received a Confirmed Response to the original port request or Supplement Type 3.