# MELCAS parameters

The following table describes NCC.X.ADI_MEL parameters. Generally, these parameters are not altered from their default values.

Field | Unit | Default | Description
--- | --- | --- | ---
nodialtonebehavior | mask | 0 | Behavior if no dialtone: 0 - abandon 1 - proceed
transfersupport | mask | 1 | 1 - support transfer commands
CIDsupport | mask | 0 | 1 - enable FSK caller ID
cleardowntone | mask | 1 | Choice of cleardown tones to play: 0 - do not play cleardown tone 1 - play dialtone 2 - play busy tone 3 - play fast busy tone
networkside | mask | 0 | Must be set to 0.
bitqualtime | ms | 12 | 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 inter-ring silence
ringstoincoming | count | 1 | Number of rings for an incoming call: 0 - 1st ring begin 1 - 1st ring end n - after n rings
dialtonewaittime | ms | 5000 | For outgoing calls, the maximum time to wait for initial dialtone.
dialtonemintime | ms | 1000 | For outgoing calls, the minimum duration of non-precise dial tone required before dialing begins. Set this to 0 to disable non-precise dial tone detection.
xferstring | string | !; | Prefix dial string for call transfer. Meaning: ; (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 | ! | String for transfer back to the connected state with the first call. It is dialed if a call transfer fails. Meaning: ; (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 | 100 | Time to wait after sending transfer back hookflash if the PBX was playing busy.
waitdialnodialtone | ms | 500 | Time to wait to dial if no dialtone detection is required.
waitforrelease | ms | 10000 | Time waiting for the remote end to disconnect.
waitfordisconnectclear | ms | 1000 | Time waiting for the remote end to send DisconnectClear signal after receiving a clear signal.
TmCIDmaxWait | ms | 3000 | Maximum time to wait for CID to arrive.
TmMinmark | ms | 100 | The CID minimum mark time.
disconnectClearDuration | ms | 480 | Duration of disconnect clear signal.
delayBeforeDiscClear | ms | 200 | Delay before sending disconnect clear.
releaseguard | ms | 1000 | Release guard time.