Grandstream UCM6100 User Manual for 1.0.9.25 - Manual (Page 263)

Firmware Version 1.0.9.25 UCM6100 Series IP PBX User Manual Page 262 of 303
TLS Cert
This is the Certificate file (*.pem format only) used for TLS connections. It
contains private key for client and signed certificate for the server. This file
will be renamed as "TLS.pem" automatically.
Note:
The size of the uploaded certificate file must be under 2MB.
TLS CA Cert
This file must be named with the CA subject name hash value. It contains
CA's (Certificate Authority) public key, which is used to verify the
accessed servers.
Note:
The size of the uploaded CA certificate file must be under 2MB.
TLS CA List Display a list of files under the CA Cert directory.
SIP SETTINGS/NAT
Table 89: SIP Settings/NAT
External IP Address
Configure a static address and port (optional) that will be used in
outbound SIP messages if the UCM6100 is behind NAT. If it's a
hostname, it will only be looked up once.
External Host
Specify an external host name, which is similar to External Address
except the host name will be looked up periodically based on the
"External Refresh" interval.
External Refresh
Configure the refresh interval for the external host (if used) The default
setting is 10.
External TCP Port
Configure the externally mapped TCP port when the UCM6100 is behind
a static NAT or PAT.
External TLS Port
Configures the externally mapped TLS port when UCM6100 is behind a
static NAT or PAT.
Local Network Address
Specify a list of network addresses that are considered inside of the NAT
network. Multiple entries are allowed. If not configured, the external IP
address will not be set correctly.
A sample configuration could be as follows:
192.168.0.0/16