How do I configure Distinctive Ring feature of the Sipura VoIP adpater?

Problem:

Solution:

You can define 8 ring patterns (cadences) shared by both Line 1 and Line 2
(for SPA-2000); namely Ring 1-8. The user can select a default ring for incoming
calls among the 8 ring patterns. User can also defined a list of caller patterns
with each ring pattern so that the ring is played when the caller-id matches the
pattern. For example, one can associate Ring 2 with "1408*,1510*", so that
whenever caller with 408 and 510 area code will use Ring 2 to ring.

Service provider can also request the SPA to play one of the ring patterns for
each inbound call. To do this the service provider insert an Alert-Info header
in the inbound INVITE to the SPA, specifying name of the ring pattern to play.
By default the ring pattern names are "Bellcore-r1"..."Bellcore-r8".
For Rings 1-8, respectively. The names can be re-configured.