What is H.263+L?

[eorionus]

I have 2 Viewstations, a 512 and an MP. I use the 512 as a backup unit. Both are set to 384Kbps on ISDN. Recently, on some of my calls, the log indicates I'm receiving a video codec called H.263+L. These calls drop in no particular pattern after the video freezes for a minute or two while audio continues. I've had the lines checked twice, switched between the two units and even switched out the IMUX. Same result. Anybody familiar with this type of problem?
Any help would be GREATLY appreciated!

[Glen Sykes]

Do the H.263L logs correlate with the disconnects, or do they occur under other circumstances.

H.263+ is a well established standard, and the L I can only assume refers to the Annex of H.263, although after a little research I can't see how this Annex would be required to be stated in the log.

This document is a decent reference for the H.263+ standard:

http://www.ece.utexas.edu/~bevans/courses/ee382c/projects/spring98/song-wang/finalreport.doc

[eorionus]

It just occurs when the log indicates I'm receiving the H.263+L codec.