Version 5.2/5.4 31 January 2009
Troubleshooting Guide 4. Call Setup
Possible Cause Solution
International numbers - 9 for dialing tone, 011 is the Country
Code, and then any number of digits for the local number
('x.').
Note: For BRI/PRI interfaces, the digitmap mechanism is
applicable only when ISDN Overlap dialing is used
(ISDNRxOverlap is set to 1).
2.
The device is configured to
collect more digits than what is
actually dialed.
Ensure that the values of the following Web interface
parameters in the 'DTMF & Dialing' page (Web path SW
Ver. 5.2: Protocol Management menu > Protocol Definition
submenu > DTMF & Dialing; Web path SW Ver. 5.4 and
later: Configuration tab > Protocol Configuration menu >
Protocol Definition submenu > DTMF & Dialing) are not
configured too high:
'Max Digits In Phone Num' (MaxDigits).
'Inter Digit Timeout for Overlap Dialing'
(TimeBetweenDigits)
3.
The device takes a long time to
detect a dial tone.
Note: Only applicable to IP-to-
Tel calls in FXO interfaces for
One-Stage Dialing.
If the 'Waiting For Dial Tone' parameter is configured to
"Yes" (i.e., wait for dial tone, default), it can take the device
1 to 3 seconds to detect a dial tone (according to the dial
tone configuration in the Call Progress Tones file).
Therefore, to resolve this problem, you can configure the
parameter 'Waiting For Dial Tone' to "No". However, this
configuration is not recommended.
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