Yealink SIP-T48G Administrator's Manual page 181

Parameters
network.snmp.trust_ip
Description:
Configures the SNMP (Simple Network Management Protocol) server addresses
from which GET requests will be accepted.
You can specify one or more addresses. Multiple addresses are separated by
space.
If the value is set to "0.0.0.0", the IP phone can accept and handle GET requests
from any IP address.
If the value is left blank, the IP phone cannot receive or handle any GET request.
Note: If you change this parameter, the IP phone will reboot to make the change
take effect. It is only applicable to SIP-T48G IP phones.
Web User Interface:
Network->Advanced->SNMP->Trusted Address
Phone User Interface:
None
To configure SNMP via web user interface:
1. Click on Network->Advanced.
2. In the SNMP block, select the desired value from the pull-down list of Active.
3. Enter the desired port in the Port (1~65535) field.
4. Enter IP address(es) (IPv4 or IPv6) or domain name of the SNMP server in the
Trusted Address field.
Configuring Advanced Features
Permitted Values
IP Address
Default
0.0.0.0
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