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Callthrough directly


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Hello everyone,

 

we are using the PBX to make calls from our Mobile Phones (GSM-Cellphone) through the PBX in order to show the called Party the Office-Phone Number instead of the mobile Phone Number.

We call the PBX, then press 1 for Outgoing Call, then type-in the Phone Number we want to be connected to and press #.

 

Some Calling Card Providers offer Callthrough and we think it might be possible to run the same Service with Vodia PBX:

 

Let's say the Calling-Card Extension is +498912345-678. Instead of calling that Extension and get the announcement "Press 1 for Outgoing Call" and so on, we dial +498912345678901761234567

 

The PBX gets that overlong DID and retrieves the Digits 01761234567 as the requested destination number and directly forwards the Call to that number. No message played, no DTMF Input neccessary. In case the Destination Number is busy the call isn't answered (and forwarded) through the pbx and the Calling Card User gets the Busy tone.

 

Is there a way to configure the CallingCard Extension in such a way (e. g. Dialplan Regex)?

 

Regards from Germany

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Typically the calling card behaves the same as you would call your own extension but you won't get the prompt from the PBX to dial 1 to make an outbound call.

 

On the calling card account there is an authentication mechanism that will prompt the user for the PIN, once entered they can make an outbound call.

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Sorry, I've mixed up "Dialling own Extension" and "Calling Card", but the question is still the same: Directly callthrough without Authentication by PIN, just by Caller ID and Destination-Number extracted from excess-length DID instead of entering via DTMF.

 

If I understood you right, there is no way to do that?

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  • 1 month later...

I had tried a few things, but didn't got ahead. I think the Problem is, that an incoming call can be routed to an Extension only, no matter which dialplans (even inter-Domain settings) are set. Under 'Routing/Redirection' in the trunk Settings, the Manual tells me I can only enter Extension numbers.

 

Again, we are searching for making Callthrough-Calls from our mobile-phones by dialling the Destination number as an DID. Assume that our Office-number is 089-5555-0 we would like to call 089-5555-0176123456 in order the pbx detects the 'DID' 0176123456 and redirects our incoming mobile-call to that external number.

 

I think, the first step should be, to get an incoming call being forwarded to a pre-defined number (for testing). If this works, than we can care about forwarding individually by DID.

 

I fail with that first step. If I type-in the test-Destination number any incoming call should be forwarded to, into the 'send call to extension' the call Fails, because there is no Extension with 0176123456. I'm sure dialplans will be ignored, as the System is only searching for extensions and doesn't cares about dialplans for Routing incoming calls, isn't it?

 

What about the Redirect Feature? I found some description in the WIKI, but didn't understand how the redirection works. Is there a way to get the incoming call redirected to a pre-defined number or better the dialled DID (which is an external number)?

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The trunk should have a setting for that ("Inter-Office Trunk"). You need to turn on "Trunk may terminate calls for remote systems" and select the dial plan that should be used. I think the documentation link above is missing that, we probably have to update the page on that feature.

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Inter-Office Trunk help2.gif Trunk may terminate calls for remote systems: YesNo Dial plan for outbound calls: Domain Default2ndExampleDial Out

 

Please set the setting to Yes and select the dial plan to use for the outgoing call. That way, incoming calls will go out the selected trunk (through the dial plan), when the number isn't found in the PBX itself.

 

However, make sure to take steps for security of calls, so that not anybody is allowed.

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Fine, we have a V5 System (Sandbox Server only) an will move our V4 there. So I understand, all we need are just these two Settings, only. Thus, if the DID matches to an Extension, the Extension is called. If not, the number is Interpret as an number to be dialled according the dialplan, isn't it?

 

Can the "Accept Redirect" be kept to "No"? Or is that Feature based on allowing redirections?

 

How to set, that not anybody is allowed to use that way of making calls? The field "Explicitly list addresses for inbound traffice" certainly means IP-Adresses rather than telephone numbers which must match. Only a few mobile phones should be allowed to use that trunk. Is there a way to White-list them?

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The trunk to trunk routing in V4 was a hack to get Microsoft LCS working. In V5 we have taken the concept further to make true trunk to trunk calling possible, so that the PBX has some features known from bigger "switches". The V4 hack was to assume that the call came actually from a specific extension; in V5 that is not necessary any more and both call legs are trunk call legs.

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Well you can use the expressions and headers in the incoming trunk routing to give a list of numbers allowed and redirecting others to say an IVR that gives a message and hangs up.

 

Here are some related documents:

 

http://vodia.com/documentation/trunk_inbound_routing

 

http://vodia.com/documentation/trunk_custom_headers

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