Tieline ViA User Manual page 231

Bonded Only
3. Click Save to apply changes to the Config.
Dial and Answer Route Settings in Programs
Dial Route and Answer Route tags allow you to associate a B channel (or channels) in a Config
with a particular incoming audio stream from either Tieline G3 or non-Tieline codecs. This is not
necessary in simple point-to-point ISDN audio stream configurations, however it is very useful in
multiple audio stream codecs using multiple B channels. When dialing Tieline to Tieline over ISDN
using the Merlin, Genie and ViA families family of codecs, you can configure a Dial Route in the
dialing codec's program and a corresponding Answer Route in the answering codec's program. This
will ensure a particular audio stream is routed between two codecs consistently. This feature is not
available in Tieline G3 codecs, so an Answer Route should be used for deterministic routing when
answering calls from these codecs.
In principle, the concept of 'routes' operates similarly to how audio ports are used to route multiple
audio streams over IP. Selecting different IP audio port numbers allows users to define which
incoming IP audio stream is routed to a specific answering audio stream configuration on the codec.
This ensures inbound calls from multiple codecs can be consistently routed to the same answering
codec audio streams, and therefore the same inputs and outputs. Following is an example of how to
consistently route incoming ISDN audio streams using dial and answer routes.
Answer Routes for Non-Tieline (Sessionless) or Tieline G3 ISDN Calls
In some situations you may receive a call from a non-Tieline codec which doesn't support session
data and Dial Route tags. In this situation you can still specify the audio stream Route on the
answering codec using Config 1-2 in ISDN Answer. You can also select the default algorithm.
For example, if a call from a non-Tieline codec is received via B Channel 1 on Module 1 (i.e. no
Dial Route has been specified in the dialing codec):
© Tieline Pty. Ltd. 2017
using incompatible algorithms will not be bonded
Will only bond compatible algorithms. This mode will reject
incompatible calls which cannot be bonded, e.g. G.711 and
G.722
ViA User Manual v2.0 231