Device Adapter provides the following infrastructure capabilities:
Endpoint registration:
UNIStim endpoint registration mapped to SIP registration with Session Manager.
Sequential Registration is required to support UNIStim endpoint fail-over.
Analog and digital endpoint registration between Media Gateway Controller and Device Adapter carrying out SIP registration with Session Manager on behalf of each device.
Sequential Registration fail-over configuration is required to support MGC fail-over for analog and digital endpoints.
Both UNIStim endpoints and MGC have primary and backup registration entities.
Device Adapter performs SIP registration on behalf of the UNIStim endpoints it supports. Device Adapter supports a S1 (primary Session Manager) and S2 (secondary Session Manager) to perform the endpoint registrations. Configuration of a secondary Session Manager ensures continued telephony service if an interruption occurs in the primary Session Manager.
Similarly, MGC supports a primary Device Adapter and two alternate Device Adapters. The digital and analog endpoints are connected to the MGC. The MGC establishes a proprietary PBXLink connection to the Device Adapters. After the connection is established, the Device Adapter registers the digital and analog endpoints to the Session Manager.
This provides the endpoints the capability of redundant Device Adapter access. Device Adapter allows a primary and backup link to Session Manager in one of the two data centers or in a branch.
Fail-over may result in the Device Adapter trying to SIP register an endpoint before the existing registration is unregistered. Sequential Registration allows the new registration to complete, without waiting for the prior registration to be declared failed.
Feature key labels:
Provided by the firmware for labels without customization by the System Manager.
Custom labels are downloaded to the UNIStim stations as defined by the administrator on System Manager.
Tone and Cadence settings are based on the country, as configured in the Device Adapter attributes.
Context-sensitive soft key support for station types with the capability to provide these keys.
Key Expansion Module support, varying by station type among stations supporting this capability. For example, analog endpoints do not support expansion modules.
Media Security options (None, Best Effort, Always).
