Hi Everyone, I am experiencing an issue where a call is delivered to my phone, where it rings twice (displays correct calledID), then the call vanishes for a few seconds, then it comes back but without the callerID the second time. Its almost as if the call vanishes for a few seconds, and during this period you can't answer the phone to listen to the caller. The whole time the caller here normal ring tones. Very odd issue. I have a very basic home setup. A single POTS line goes into my uC500 for connection to the PSTN. I have a 7961 and a 7921, with each using a shared line. I have the configuration setup so when someone calls my house, it gets delivered to the UC500, and then it goes to a shared line on each of the Cisco IP phones. The odd ring behavior is obsered on each of the phones. Thanks in advance for your help. |
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UC500.comCisco Communication Manager Express, UC520, SMB VOIP reference and community |
Re: Phone rings twice, vanishes for a few seconds, then comes ba
My hunch is that there is a signal coming in on the line - I have seen this before where battery-reversal is sent from the CO after the second ring. Try disabling battery-reversal on the port that the line is connected to.
voice-port
no battery-reversal
shut
no shut
Thanks!
That config worked like a champ. The phones are ringing normally now!