User guide

SME VoIP System Guide, Version 1.9
Proprietary and Confidential
Chapter: SME VoIP Administration Interface
38
STUN Bindtime
Guard
80
Permitted values: Positive integer default is 90, unit is in seconds
Enable RPORT
Disabled
Enable to use RPORT in SIP messages.
Keep alive time
90
This defines the frequency of how keep-alive are sent to maintain
NAT bindings.
Permitted values: Positive integer default is 90, unit is in seconds
5.5.5 SIP/RTP Settings
These are some definitions of SIP/RTP settings:
Screenshot
Parameter
Default Values
Description
Use Different
SIP Ports
Disabled
If disabled, the Local SIP port parameter specifies the source port
used for SIP signalling in the system.
If enabled, the Local SIP Port parameter specifies the source port
used for first user agent (UA) instance. Succeeding UA's will get
succeeding ports.
Local SIP
port
5060
The source port used for SIP signalling
Permitted values: Port number default 5060.
SIP ToS/QoS
0x104
Priority of call control signalling traffic based on both IP Layers of
Type of Service (ToS) byte. ToS is referred to as Quality of Service
(QoS) in packet based networks.
Permitted values: Positive integer default is 104
RTP port
50004
The first RTP port to use for RTP audio streaming.
Permitted values: Port number default 50004 (depending on the
setup).
RTP port
range
40
The number of ports that can be used for RTP audio streaming.
Permitted values: Positive integers, default is 40
RTP
TOS/QoS
0xB8
Priority of RTP traffic based on the IP layer ToS (Type of Service) byte.
ToS is referred to as Quality of Service (QoS) in packet based
networks.
See RFC 1349 for details. “cost bit" is not supported.
o Bit 7..5 defines precedence.
o Bit 4..2 defines Type of Service.
o Bit 1..0 are ignored.
Setting all three of bit 4..2 will be ignored.
Permitted values: Positive integer default is 160
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