Recommendation Q.118

-	The last paragragh of 4.3.2 is replaced by the following text:

"During the establishment of a connection to a PABX extension it is not appropriate to send a clear back signal. However, if a PABX returns a clear back condition, the duration must be less than 10 seconds, so that it would not unintentionally clear the connection, especially on calls from networks with short time-out.1"

-	Add footnote:

"1 For call where the charging is applied to called party (e.g., free phone service) the time-out may be reduced. The value to be chosen is for further study."