Help > Using the Phone > Settings > Network > Topology > Basic Settings
Basic Settings
Check hostname
Checks whether the certificate belongs to the domain/IP.
*Further help under Network
FrameSize
Sets the RTP packet size (msec Audio/RTP package).
*Further help under Network
Jitter buffer
Specifies how many RTP packets can be cached to buffer or compensate for disruptions.
Initial valueInitial prefetch delay value (msec).
*Note: The value must lie between Min. prefetch and Max. prefetch. If the Initial value = 0, prefetch is deactivated.
Min. prefetch: Minimum prefetch delay (msec).
Default: 60 msec
Max. Prefetch: Maximum prefetch delay (msec).
Default: 240 msec
Maximum: Delay that can be set for the jitter buffer (msec).
Default: 360 msec
*Further help under Network
RTP off when silent
Ends the sending of RTP packets if no active conversation is taking place.
*Note: If this function is switched on, parts of the call can seem like breaks in the connection because background noises are cut off sharply.
*Further help under Network
STUN server
Opens the STUN server management.
*Details about the settings are in STUN server
LLDP
If this function is enabled, LLDP packages are sent regularly to the directly connected LLDP-enabled switch.
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LLDP: Interval in seconds
LLDP package sending frequency
30 to 3600 sec
Minimum: 30 sec
Default: 30 sec
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Compact SIP headers
If the provider requires it: Uses compact SIP headers to reduce packet sizes.
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No TCP for UDP
If the provider requires it: Prevents switching to TCP for large packets.
*Note: If this function is switched off, large packets are sent via TCP instead of UDP in accordance with RFC.
*Further help under Network