We recently upgraded
9971 model IP Phones to sip9971.9-4-1-9 and
8945 model IP Phones to sip8941-8945.9-4-1-8.
After the upgrade when 9971 calls 8945; video freezes but voice is normal.
We tried Applications > Status > Call Statistics > Video > Video statistics > Rcvr Packets statistics. The number is increasing.
Hold/resume do not work.
Anyone who can help about this?