Nokia Secret Codes Part 7

Call number transmission * 31 # - { CLIR - Calling LINE identification Restriction switches on for the general call number transmission }
# 31 # - switch off the general call number transmission
# 31 # [ telephone number ] - with the next call suppress the own call number (thus temporary)
* 31 # [ telephone number ] - with the next call transfer own call number (thus temporary)
* # 31 # - status query (of call number transmission)
# 31 * [ telephone number ] - own call number show, although receiving station switched call number suppression on. (is not usually de-energised of the Netz(betreiber).)
* 30 # - switch { TIE-clip - Calling LINE identification presentation for the announcement on of the call number of the caller }
# 30 # - switch off
* # 30 # - status query
This also partly goes with 6600 via Men: Attitudes - calls - own No. send...
The following codes are not supported by most Netz(betreibern):
* # 76 # - announcement of the call number, under which one reached the calling (not its call number during rufumleitung!) { COLP - COonnected LINE identification presentation }
* 76 # - switch on
# 76 # - switch off
* # 77 # - announcement of the call number, under which the caller reached me (not my call number during rufumleitung meinerseits!) { COLR - COnnected LINE identification Restriction }
* 77 # - switch on
# 76 # - switch off