Version 6.2 467 February 2011
SIP User's Manual 10. Configuration Parameters Reference
10.12.8 Telephone Keypad Sequence Parameters
The telephony keypad sequence parameters are described in the table below.
Table 10-56: Keypad Sequence Parameters
Parameter Description
Web/EMS: Call Pickup Key
[KeyCallPickup]
Defines the keying sequence for performing a call pick-up. Call
pick-up allows the FXS endpoint to answer another telephone's
incoming call by pressing this user-defined sequence of digits.
When the user dials these digits (e.g., #77), the incoming call
from another phone is forwarded to the user's phone.
The valid value is a string of up to 15 characters (0-9, #, and *).
The default is undefined.
Notes:
 Call pick-up is configured only for FXS endpoints pertaining
to the same Hunt Group.
 This parameter is applicable only to FXS interfaces.
Prefix for External Line
[Prefix2ExtLine]
Defines a string prefix (e.g., '9' dialed for an external line) that
when dialed, the device plays a secondary dial tone (i.e., stutter
tone) to the FXS line and then starts collecting the subsequently
dialed digits from the FXS line.
The valid range is a one-character string. The default is an
empty string.
Notes:
 You can enable the device to add this string as the prefix to
the collected (and sent) digits, using the parameter
AddPrefix2ExtLine.
 This parameter is applicable only to FXS interfaces.
[AddPrefix2ExtLine]
Determines whether the prefix string for accessing an external
line (defined by the parameter Prefix2ExtLine) is added to the
dialed number as the prefix and together sent to the IP
destination (Tel-to-IP calls).
 [0] = Disable (default)
 [1] = Enable
For example, if this parameter is enabled and the prefix string
for the external line is defined as "9" (using the parameter
Prefix2ExtLine) and the FXS user wants to make a call to
destination "123", the device collects and sends all the dialed
digits, including the prefix string, as "9123" to the IP destination
number.
Note: This parameter is applicable only to FXS interfaces.
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