speech delay on SPA 504G after software upgrade to 7.5.7s

[support0123]

We have several SPA 504G Cisco phones, a few days ago I upgraded them all to software version 7.5.7s since then users are complaining that when they answer a call there is a small delay before speech is setup. Has anybody else experienced this is it possible to downgrade them to an earlier version say 7.5.3

Graham C

[Dan Lukes]

Off-topic in Feedback Forum. Moved to other forum.

[support0123]

Sorry 1st time user which is the correct forum

Graham

[Dan Lukes]

So many possible causes for delay. Turn on syslog&debug (highest level) and catch them. Capture SIP and RTP packets for affected call and analyze them. Disclose current configuration.

But as a blind fire - if you are using TLS then the TLS is the answer.