# GDS non-editable parameters

The following NCC.X.ADI_GDS parameters are country or network specific and cannot be modified.

Caution: | Most of the parameters that follow are signaling specific. Changing their value invalidates any approval certificate for the used board and can cause the board to malfunction. These parameters are described here for reference purposes only.

Field | Type/ Units | Default | Description
--- | --- | --- | ---
bitqualtime | ms | 10 | Qualification time for bit detector.
minringontime | ms | 100 | Minimum duration of incoming ring.
maxringontime | ms | 3000 | Maximum duration of incoming ring.
maxringofftime | ms | 8000 | Maximum duration of silence between rings.
ringstoincoming | count | 0 | Number of rings to detect for an incoming call: 0 - 1st ring begin 1 - 1st ring end n - After n rings If caller ID is enabled (optionflags bit 3 = 1), the incoming call is reported after at least one ring.
dialtonewaittime | ms | 5000 | For outgoing calls, the maximum time to wait for initial dial tone.
dialtonemintime | ms | 1000 | For outgoing calls, the minimum duration of non-precise dial tone required before dialing will begin. Set this to 0 to disable non-precise dial tone detection. Precise dial tone detection is controlled by NCC.START parameters.
releaseguardtime | ms | 1000 | Minimum time between hang up and off hook.
CIDtype | integer | 0 | Type of caller ID protocol, if CID is enabled. 0 - BellCore CID protocol 1 - NTT Japan CID protocol 2 - ETSI CID protocol (V.23)
CIDmaxwaittime | ms | 0 | Maximum time to wait for caller ID to arrive before concluding the caller has hung up (if CID is enabled).
CIDmaxalerttime | ms | 0 | Maximum duration of an alert signal in caller ID protocol (if CID is enabled).
CIDminmarktime | ms | 100 | Minimum duration of the mark signal of the caller ID protocol that is interpreted as such.
xferstring | string[6] | !; | Prefix dial string for call transfer. The string is dialed before dialing the number, where: ; (semicolon) - Wait for precise dial tone . (period) - Insert long pause in dialing , (comma) - Insert short pause in dialing ! (exclamation point) - Flash hook P - Switch to pulse dialing T - Switch to DTMF dialing M - Switch to MF dialing
connstring | string[6] | ! | String for transfer back to the connected state with the first call. It is dialed if a call transfer fails, where: ; (semicolon) - Wait for precise dial tone . (period) - Insert long pause in dialing , (comma) - Insert short pause in dialing ! (exclamation point) - Flash hook P - Switch to pulse dialing T - Switch to DTMF dialing M - Switch to MF dialing
connectbacktime | ms | 0x0 | Time to wait after sending transfer back hookflash is the PBX was playing busy.
waitdialnodialtone | ms | 500 | Time to wait to dial if no dialtone detection is required.
ringsignalontime | ms | 1000 | Nominal ring-on time for network emulation.
ringsignalofftime | ms | 3000 | Nominal ring-off time for network emulation.

The following parameters are reserved for internal use:

- numdigits

- alarmsonqualtime

- alarmsonqualtime

Refer to GDS editable parameters for more information.