How to resolve the problem that PBX does not support extension dialing when you dial a Voip Extension

In the case of Voip, we often encounter customer requirements for public-specialized functions.

The general practice is to connect the FXO interface to the extension line. The customer calls in through the external line, hears the automatic operator, then dials to the VOIP extension, and then calls the IP address, however, this practice usually requires some vswitches.

PBX has a type of group telephone. This is also the first time I have encountered this kind of thing. It does not support the above method. The reason is that the tone that calls the extension can no longer send signaling. That is to say, the phone number that calls the extension from the external line cannot continue dialing. Unlike the extension transfer, the extension transfer extension does not need to send signaling ). The symptom of this practice is to call the VOIP extension on the company's switchboard, followed by a long voice of DU, whatever you dial, it is a long voice of DU.

The solution is actually relatively simple. There are two board types on the PBX. One is the internal line card, the internal line extension, the external line card, and the external line. What we need to do is, connect the external port to the external port of the internal port. Are you sure you want to set the external port to 0 or 9, this creates an illusion for the PBX: the signal is transferred from an external line, so that the PBX can continue to send signals to complete Voip calls.

The common analog PBX does not have the above problems. Please feel free to use it.

Voip is really a complicated thing. Every time you go to the client to install it, there will always be these problems. I hope you can share your own experiences.

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