We have a 12 S500 phones that we have been using for almost a year with Jabra Biz 2300 headsets. About a month ago outgoing audio on one of the phones stopped working through the headset. The handset has no issue.
I changed the GN1200 connector and then the entire headset, but the problem persists. The headset from that phone works properly and has two-way audio when connected to a different S500 phone, so I’m thinking it has to be a phone issue.
We had similar issues with Zulu when a user changed the NAT setting.
I’ve looked (more than once) but can’t see a similar setting on the phone.
Is there a NAT setting on the phone that the user could have changed? Anything else I should be looking at?