we have an office which has intermittent outbound voice issues. User within the office make a call and randomly the ecternal recipient cannot hear the internal user - will be ok, then drop, then come back, during the call.
I carried out a capture on the firewall on the inside and outside leg. Internal was fine, but external capture showed the momentary silence from the inside user.
Does this mean its not leaving the firewall ? or is there another explanation? Can it leave the firewall but not get caught in the packet capture?
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