# SS5 editable parameters

To program the SS5 TCP to operate within different countries and networks, modify the TCP-specific parameters stored within the parameter category NCC.X.ADI_SS5. You can modify parameters that program TCP/host interaction, that configure unregulated features or that configure features that can change from switch to switch within the same network.

The following table describes NCC.X.ADI_SS5 parameters (within the parameter category NCC.X.ADI_SS5) that you can modify.

Field | Type/ Unit | Default | Description
--- | --- | --- | ---
numdigits | count | 7 | Relevant to inbound protocol. Specifies the number of incoming digits to expect. This value is overridden if the outbound party sends an ST (end of dialing) tone. An ST tone is foreseen in the CCITT specifications, but can be missing.
variabledigits | mask | 0x0 | Inbound: Determines what to do if a timeout occurs during digit reception: 0 - Reject the call 1 - Notify the host of an inbound call This value is only valid if the ST tone is missing.

Refer to SS5 non-editable parameters for more information.