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I’ve heard that I cannot replace a DualCom Plus with a different unit, is this true?

April 26, 2017different dualcom heard I’ve Plus replace

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I’ve heard that I cannot replace a DualCom Plus with a different unit, is this true?

1 Answer

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Once a DualCom Plus has been logged onto the Polling Server, a record is kept of the telephone number it is connected to. When the DualCom Plus dials the Polling Server via PSTN, the Polling Server recognises the incoming number and processes the appropriate file before answering the call to minimise the cost of the phone call. If the same DualCom Plus is connected to a different phone line, then the Polling Server sees that the NUA has moved so amends the registered data. If, however, a DualCom Plus is connected to a phone line recorded as being connected to another DualCom Plus, the Polling Server will see that the NUA has changed so will generate an error message.