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FTTx,
RFoG
and
HFC
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78
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114
DTMF
Settings
There
are
3
options
for
DTMF,
including
RFC2833
,
InBand
DTMF
and
Send
DTMF
SIP
Info.
Voice
QoS
Set
up
the
quality
of
service
for
voice.
SIP
Qos
Set
up
the
quality
of
service
for
SIP.
SIP
Expire
Time
Set
the
SIP
registration
expiry
time.
Use
DNS
SRV
Disable
or
enable
DNS
SRV.
STUN
Disable
or
enable
STUN
server.
STUN
Server
Type
the
STUN
server.
STUN
Port
Specify
the
STUN
port.
After
all
settings
are
completed,
click
<Apply>
to
activate
them.
12.3
Network
Settings
VoIP
VLANs
are
configured
specially
for
voice
data
stream.
By
configuring
VoIP
VLANs
and
adding
the
ports
with
voice
devices
attached
to
VoIP
VLANs,
you
can
perform
QoS
‐
related
configuration
for
voice
data,
ensuring
the
transmission
priority
of
voice
data
stream
and
voice
quality.
Configuration
Steps:
Step
1
Enable/disable
VoIP
VLAN;
Step
2
If
VoIP
VLAN
is
enabled,
specify
its
VID;
Step
3
Set
the
IP
address
for
VoIP
VLAN,
if
you
adopt
DHCP
for
it,
enable
“DHCP
Client”;
if
you
adopt
static
IP,
you
should
input
the
IP
address,
subnet
mask,
route
1
and
route
2.
Decide
to