TELES VoIP Box BRI Series, Reference Manual

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5 Additional VoIP parameters
VoIPBox DSL / VoIPBox BRI – version 21.0.009 Page 107
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CFNR (not reachable)
5.7 Interworking parameter
Set the parameter
VoipAnswerUnknownUser=on
to answer
empty
OPTION
messages. Some registrars sends empty
OPTION
messages for a keep alive check. If these messages
are not answered, the registration is lost.
If this parameter is set,
SIP-REGISTER
or
SUBSCRIBE
mes-
sages without a matching VoIP profile will be answered with a
503 response.
Set this parameter
VoipAnswerUnknownUser=on
in the
[system]
section of the
pabx.cfg
.
Table 5.9 Customized parameters: VoIP call forwarding
VoIP Call-Forwarding Parameters
CMD_<type>Activate=<string>
Activates call forwarding (CFU, CFB, CFNR). Must include the keyword MSN, which re-
fers to the number to which incoming calls shall be forwarded (e.g. “*41*MSN#”).
CMD_<type>Deactivate=<string>
Deactivates call forwarding (CFU, CFB, CFNR).
CMD_<type>Status=<string>
Queries whether call forwarding is active (CFU, CFB, CFNR).
RETVAL_<type>ActivateOk=<string>
LEX display string for successful activation of call forwarding.
RETVAL_<type>DeactivateOk=<string>
LEX display string for successful deactivation of call forwarding. Can include the key-
word MSN, which refers to the number to which incoming calls are forwarded.
RETVAL_<type>StatusActDiv==<string>
LEX display string for status query when call forwarding is active. <MSN> refers to the
number to which the incoming call is to be forwarded. Must include the configured
keyword “MSN” which refers to the number to which incoming calls are forwarded
(e.g. “CFU to MSN”).
RETVAL_<type>StatusNoDiv=<string>
LEX display string for status query when call forwarding is inactive.