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Joined: Jan 2015
Posts: 5
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Member
Joined: Jan 2015
Posts: 5 |
I have a customer with an XTS with several VoIP extensions complaining that intermittenly when an extension is called, the phone rings but when answered, there is no audio. The system has 2 VoIP boards: 1 has FW Ver. A1A-2, the other has FW Ver. 10A-2. Could this be the causing the problem?
Mark
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Joined: Jan 2008
Posts: 3,821
Retired Moderator
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Retired Moderator
Joined: Jan 2008
Posts: 3,821 |
It could, but this problem is caused more often by low bandwidth which causes jitter, and packet errors. A card reset usually fixes it, for awhile anyway.
www.myrandomviews "Old phone guys never die, they just get locked in some closet with an old phone system and forgotten about" Retired, taking photographs and hoping to fly one of my many kites.
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Joined: Jan 2015
Posts: 5
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Joined: Jan 2015
Posts: 5 |
It only seems to be a problem on 1 board. I kind of thought it was the provider but they upgraded their service. It just started after Christmas and is intermittent.
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Joined: Jan 2008
Posts: 3,821
Retired Moderator
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Retired Moderator
Joined: Jan 2008
Posts: 3,821 |
Well, I don't think it can hurt to upgrade the firmware and see if that fixes the problem, then again the problem could be at the other end you know, the ip phone connected to that board.
www.myrandomviews "Old phone guys never die, they just get locked in some closet with an old phone system and forgotten about" Retired, taking photographs and hoping to fly one of my many kites.
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Joined: Oct 2004
Posts: 1,492
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Joined: Oct 2004
Posts: 1,492 |
We have had this problem at a couple of different sites. And after some investigating the IP card being on the Public side is appearing like someone or something is trying to hack it. When looking at a trace you will see things like "Cisco" siezing one of the trunks and that is when there will be no audio until a reset works. We have the one site that is consistently having issues and we are going to attempt to put a hardware VPN tunnel in between the remote phones and the VOIP card to see if this will clear the issue up.
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