Andres, Could you send us the model and firmware version of the SMC router? We do have a couple of clients using that brand. So far, I didn't receive any complain from them, but it's worth looking into. Zeus > -----Original Message----- > From: serusers-bounces(a)lists.iptel.org > [mailto:serusers-bounces@lists.iptel.org] On Behalf Of Andres > Sent: Monday, 19 July 2004 9:14 AM > To: serusers(a)lists.iptel.org > Subject: [Serusers] Spontaneous UDP Port Change on SMC Router > > > Hi, > > This is a new one for us. We were getting complaints of > dropped calls > from one of our subscribers. We analyzed sample calls and it > turns our > his SMC Router is spontaneously changing the source UDP port of the > media stream in the middle of the call! > > Has anybody else seen this strange behaviour on any router? > > The problem also affects SIP registrations. Even with a Keep > Alive of 3 > seconds in the Sipura settings, the SMC spontaneously changes ports > every 5-6 minutes.