Draytek VN Models Tone & Cadence Settings for NZ
The NZ tone & cadences can be found on the Telepermit site titled as TNA102 document http://www.telepermit.co.nz/resources_index.html. This is a good source of info for any details you require of the NZ specific standards.
From here we can map the supervisory tones to the Draytek
Supervisory tones – excerpt from TNA102
(1) The following are the standard supervisory tones generated by equipment within the Telecom PSTN:- Dial tone: 400 Hz continuous Dial tone, with message waiting: 400 Hz interrupted, (Note 1) 100 ms on, 100 ms off, repeated for 2.5 secs then continuous until it times out
Busy tone: 400 Hz interrupted, 500 ms on, 500 ms off, repeated
Number unobtainable tone: 400 Hz interrupted, 75 ms on, 100 ms off, 75 ms on, 100 ms off, 75 ms on, 100 ms off, 75 ms on, 400 ms off, all repeated
Ringing tone: Either 400 Hz plus 450 Hz interrupted, or 400 Hz, modulated at 16 2/3 Hz, interrupted, 400 ms on, 200 ms off, 400 ms on, 2 sec.off, all repeated
Disconnect tone: 400 or 900 Hz interrupted, 250 ms on, 250 ms off, repeated
Switching complete tone: 400 Hz plus 450 Hz interrupted, (Note 2) 200 ms on, 400 ms off, 2 sec. on, 400 ms off, all repeated
Call waiting tone: 400 Hz interrupted, 200 ms on, 3 sec. off, 200 ms on, 3 sec. off, 200 ms on, 3 sec. off, 200 ms on, not repeated
Call holding tone: 400 Hz interrupted, 500 ms on, 500 ms off, then 400 Hz plus 450 Hz interrupted, 500 ms on, 2.5 sec. off, all repeated
Network differential signal (NDS): 1000 Hz interrupted, 100 ms on, 100 ms off, 100 ms on, 100 ms off, 100 ms on, not repeated |
This roughly translates in the Draytek interface:
The only issue we have is that we can only program a single cadence for the ringing tone so we have to connect the 1st 2 x 400ms tones into a single 800ms one then a 2 second pause. Not perfect, but close enough for most.
NOTE: 'DTMF Mode' = 'InBand' may need to be set to OutOfBand depending on your ITSP requirements.