The only other interesting packets, just before the call drops are to do with the STUN packets, they are interesting in the fact that the user entry reverses in the STUN packet on the binding request. This issue has been going on at this company for many years they tell me and I want to fix it. There have been very rare occasions where the call stayed connected after the 30-39 second mark but disconnected at the 1 minute mark. I must stress, this appears to only be affecting mobile devices using the SFB application connecting using a VOIP call. Set-CsTrunkConfiguration for EnableSessionTimer to TRUE Set-CsTrunkConfiguration for RTCPActiveCalls and ETCPCallsOnHold to FALSE Connecting to the call via 'call me at' system works fine
Having problems sending or receiving messages in your Skype chats The following tips should help. Used the MS test connectivity webpage and tested for AV Edge, no issues reported. Troubleshooting issues with Skype instant messaging. Even tried an 'any any' rule briefly on the external firewall to see if that was the issue, no help
These packets are often seen earlier in the call but it stays connected The Destination IP is the IP of the External Edge AV Service (172.x.x.x) I ended up just including an intermittent skype log - maybe every 5th page of a printed skype log showing our messages/calls on there. The Source IP is my Phone's Public IP (4G) address I had intended to include facebook logs (we have something like over 100k messages on facebook messages at this point) but the files were so large my work computer couldn't handle them. Wireshark shows a few 'ICMP Destination unreachable (Port Unreachable)' packets on the external adapter at the time of the call disconnecting Fiddler shows nothing untoward, only the call connected for the period of time, no disconnection shown CLS logging (AudioVideoConferencingIssue scenario) shows the call connect for ~30 seconds and then drop.
Users on a full SFB client on a laptop connected to the open internet stay connected to the call Users can reconnect but only stay connected for the time period mentioned above While the call is connected two way audio works. Users on mobile devices (iPhone, Android) connecting to a skype (VoIP) call, NOT PSTN, see the call disconnect on their device after 30-39 seconds of the call going on.
Users homed on-prem to make use of Enterprise voice 1x 2015 Standard edition server (.534) 1x 2015 Edge server (.534) hybrid enabled I am at a bit of a loss after trying everything i can think of with this issue.