Siemens SIMATIC S7-1200 CP 1243-8 IRC Operating Instructions Manual page 87

Connection
● Extra transmission time
Time offset (s) with slow networks to prevent premature stopping of connection
establishment.
Default setting: 10. Permitted range: 0...65535. If 0 (zero) is set, the function is disabled.
The following values are usual:
– Mobile wireless networks: 10
– Wireless or satellite transmission: 0 .. 1
Call parameters
● Dialing command
Dialing command for the local modem
Possible values:
– D (AT command)
– DP (AT command, pulse dialing)
– DT (AT command, tone dialing)
When possible use the dialing command "D".
● Dialing prefix
Access number (outside line) for a private branch exchange (typical entry 0 or 9) or for an
alternative telephone provider.
Permitted range: Max. 12 digits
With direct connection to the dial-up network and without an alternative telephone
provider, this parameter can remain empty.
● Own phone number
Entry of the network node's own telephone number including the area code.
Permitted values:
– Digits 0 ... 9
– Plus character (+) as placeholder for the trunk prefix (usually 00 or 09) before the
Example: +1230123456789
CP 1243-8 IRC
Operating Instructions, 02/2018, C79000-G8976-C385-03
international area code
Configuration
4.9 Serial interface
87