ZyXEL Communications 100WH user manual DTR Signal, Response Strings, Call Control Parameters

Prestige 100WH Internet Access Router

DTR Signal

The majority of WAN devices default to hanging up the current call when the DTR (Data Terminal Ready) signal is dropped by the DTE. When “Drop DTR When Hang Up” is set to yes, the Prestige will use this hardware signal to force the WAN device to hang up, in addition to issuing the drop command [ATH].

Response Strings

The response strings tell the Prestige the tags, or labels, immediately preceding the various call parameters sent from the WAN device. The response strings have not been standardized; please consult the documentation of your WAN device to find the correct tags.

Call Control Parameters

Table 2-7 below describes the call control parameters.

Table 2-7.	Advanced Modem Setup Call Control Parameters
Field		Description
Dial Timeout		The Prestige will disconnect if it can not set up an outgoing call within the
(sec)		timeout value.
		The default in this field is [60] seconds.
Retry Count		How many times a busy or no-answer phone number is retried before it is put
		on the blacklist.
		The default in this field is [0] to disable the blacklist control.
Retry Interval		Elapsed time after a call fails before another call is retried. Applies before a
(sec)		phone number is blacklisted.
Drop Timeout		The Prestige will drop the DTR signal if it does not receive a positive response
(sec)		within this timeout period after it tells the WAN device to hang up.
		The default in this field is [20] seconds.
Call Back Delay		Elapsed time between dropping a callback request call and dialing a callback
(sec)		call.
		The default in this field is [15] seconds.

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