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VoIP subscriber gateways 33
In case of using a gateway in private network, it is recommended to set IP address from allowed
RFC1918 range for this type of networks:
10.0.0.0 – 10.255.255.255
172.16.0.0 – 172.31.255.255
192.168.0.0 – 192.168.255.255
Check internet connection availability: these settings are used for checking the activity of preferred
channel during the selection of automatic switch to the backup channel in Internet service. Activity of the
preferred channel is determined by having access at least one of the specified ping-servers during the assigned
time interval.
– Ping server 1..5 – host addresses to check access to Internet (transmission of the simple command
‘ping’ to specified node);
– Server reply waiting interval, sec – time interval during which the device will wait reply from ping-
server;
– Server retry access count – max count of the server retries in case of absence of response from
ping-server during specified time (Server reply waiting interval);
– Next cycle timeout, sec – time interval between checks of access to the ping-servers.
To save changes into the device operative memory, click ‘Save Changes’ button. To write settings into
non-volatile memory, click ‘Apply’ button.
3.1.2.1.2 ‘Network settings’ submenu, VoIP services and Management
When ‘Add VLAN for VoIP’ flag is set, VoIP services will be made available via ‘VoIP’ service. If the
checkbox is disabled, VoIP services will be made available via ‘Internet’ service.
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