The feature is based on a draft rfc: draft-ietf-mmusic-media-loopback-10. It allows Service Provider to test the media path of their user. Followings are characteristics of this feature:-
* The objects of test include: Voip, Text and Video * Use of Loopback at the user side to reflect back the send data * By Measuring the data reflected back, the quality of the media path can be assessed.
Abacus’s Implementation are summarized as below:-
* SIP Only. Other protocols are not supported. * Only voice is supported. No video. No text. * Abacus supports both source – originating and source - terminating * Abacus has limited support on Mirror * Only Packet-only is supported (Abacus still responds to the request to loopback media, but that is fake.)
Configuration in Abacus to support the feature:- * In Channel --> PC ---> Advanced --> QOM * In RTP --> New tag of media