Codec Tieline ViA User Manual page 359

· The audio port used by the codecs is allocated automatically from the 'pool' of ports
specified in the SIP Interfaces panel. The default setting is 5004 to 5054.
· To contact a codec that is behind a firewall or NAT-enabled router, it is essential that
this and all other relevant ports are open and forwarded to the other device.
· Tieline codecs automatically add "sip:" to the address you enter in the Address field
when dialing, so it's not necessary to add this.
8. Click the drop-down arrows on the right-hand side of each active drop-down menu to adjust
the Encoding, Sample rate or Bit rate parameters. Click Next to continue.
9. Click to configure:
· Auto Jitter Adapt and the preferred auto jitter setting using the drop-down arrow for Buffer
priority. It is also possible to configure the Minimum depth and Maximum depth of jitter
over the connection. See
· Alternatively, select a Fixed Buffer Level and enter the Jitter Depth, which must be
between 12ms and 5000ms depending on the algorithm you select.
· RFC-compliant FEC can also be configured if required and the percentage is configurable.
© Tieline Research Pty. Ltd. 2020
Configuring the Jitter Buffer
ViA User Manual v3
for more details.
359