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The LCOS firmware of a LANCOM VoIP router has been updated to version 10.42. After the update, telephony problems occur if a SIP PBX is used in the scenario.
Possible Cause:
In LCOS 10.42, the standard value for UDP aging has been was changed from 20 seconds to 120 seconds. It can happen that the new standard value is not automatically adopted during the update and that a value that is too small is used.
Elimination of behavior:
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