For telephones with all incoming calls instant call forWArding preference only when the subscriber doesn't answer first four telephone calls.
Activation:
for key telephones, please dial *61* [telephone number] #
for rotary dial telephones, please dial 161 [telephone number]
Deactivation:
for key telephones, please dial #61#
for rotary dial telephones, please dial162
The tariffication of the forWArded call is made pursuant to the tariff plan.