3CX Academy, Advanced Certification
In the criteria of the True
"Outbound Rules", "Calls from
Extension(s)" having comma
separated values will allow
multiple extension ranges
to be defined
The Virtual Extension of the True
slave must match the master
side virtual extension
number
For extensions that are False
registered over multiple site-
to-site VPNs, by default 3CX
delivers the audio between
phones if they are on
different subnets.
On outbound calls to external False
numbers, 3CX will process
"Outbound Rules" in a "Best
Matching" way, depending on
how many of the criteria
match.
Wireshark can - without any False
,additional Plugins Decode all
Codecs including G711A,
G711U, GSM, G729, G726
STUN extensions can be False
configured to connect to the
tunnel port of 3CX instead of
the SIP port for more
security.
The log files of 3CX are False
never cleaned even when
you restart the 3CX Services
, Once Secure SIP has been False
configured in 3CX, Secure SIP
certificates will need to be
deployed manually in
phones and softphones OS
so that they can
communicate.
Remote extensions may be False
provisioned using the HTTP
or HTTPS URLs
The default Voicemail PIN of False
an extension consist of 4
random alphanumerical
characters.
Your 3CX has only one SIP True
Trunk and receives a call from
number 8135791691. If you
have a "Inbound CID
Reformatting" rule on the
Trunk with "Source Pattern"
813(...)(.*) and "Replace
Pattern" \1\2, the extension
that receives the call will see
"5791691" as the caller ID on
its display.
When 3CX has been True
installed without a FQDN
from 3CX and in split DNS
In the criteria of the True
"Outbound Rules", "Calls from
Extension(s)" having comma
separated values will allow
multiple extension ranges
to be defined
The Virtual Extension of the True
slave must match the master
side virtual extension
number
For extensions that are False
registered over multiple site-
to-site VPNs, by default 3CX
delivers the audio between
phones if they are on
different subnets.
On outbound calls to external False
numbers, 3CX will process
"Outbound Rules" in a "Best
Matching" way, depending on
how many of the criteria
match.
Wireshark can - without any False
,additional Plugins Decode all
Codecs including G711A,
G711U, GSM, G729, G726
STUN extensions can be False
configured to connect to the
tunnel port of 3CX instead of
the SIP port for more
security.
The log files of 3CX are False
never cleaned even when
you restart the 3CX Services
, Once Secure SIP has been False
configured in 3CX, Secure SIP
certificates will need to be
deployed manually in
phones and softphones OS
so that they can
communicate.
Remote extensions may be False
provisioned using the HTTP
or HTTPS URLs
The default Voicemail PIN of False
an extension consist of 4
random alphanumerical
characters.
Your 3CX has only one SIP True
Trunk and receives a call from
number 8135791691. If you
have a "Inbound CID
Reformatting" rule on the
Trunk with "Source Pattern"
813(...)(.*) and "Replace
Pattern" \1\2, the extension
that receives the call will see
"5791691" as the caller ID on
its display.
When 3CX has been True
installed without a FQDN
from 3CX and in split DNS
