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In the Gateway group you have to define the Outbound Caller ID, the Asserted Identity settings, the Inbound DIDs (how the number is forwarded to the Inbound routes) and the Inbound caller ID (number presentation of external caller). in addition you can permit here inbound calls in general for this gateway group.

 

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Example of Sipgate trunking gateway group settings.

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Outbound caller ID

As just the last digit of the trunk number block is changing, you can select just the last digit (in brackets, here: ^\d\d(\d)) and put it into the variable $1. As the provider wants the signalling number in the format (country-code)(city-code)(number), you have to enter this number into the next line (here: 49891234567$1, where the $1 represents the changing part).

The provider will take care about the number representation to the called party. He will present e.g. 08912345678 to the calling party.

In case your block contains more numbers, you can change the first expression to ^\d(\d\d) or even ^(\d\d\d). Then you have to check if also the second expression has to be changed, e.g. from 49891234567$1 to 4989123456$1.

Asserted Identity

These fields are used specially for external forwardings. Some providers need special settings in order to present the correct number at the receiving party.

 For Sipgate trunking accounts these settings need the same values than the Outbound caller ID. 

 Here: ^\d\d(\d) and 49891234567$1

Inbound DIDs

For incoming calls, you can use the regular expression, generated by the setup assistant. In your case you would have to adjust the city-code and the first part of the extension, according to your line-settings.

Here: ^(?:(?:(?:0049|\+49|49|0)?89)?12345)?(.*)

This expression cuts all possibly available country- and city-codes and the pilot-number from the incoming number and only the extension is remaining (here: 678). This will be forwarded to the Inbound Routes.

Inbound caller ID

For incoming calls, we will add an additional 0 in front of the external number of the caller, in order to use the callback-feature of the phone (e.g. 0089987654321). During the call-setup the additional 0 will be automatically removed.

Gateways

This field will be empty when you create this Gateway group. It will show later the assigned SIP gateways.

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Just enter or choose the values according to your contract or data you received from the provider.

 

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Example of Sipgate trunking gateway settings 1/2.

 

 

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Example of Sipgate trunking gateway settings 2/2.

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Dial command

The dial command is the command which is used in the asterisk software. The term {number:1}  means, that at the dialled number (e.g. 008987654321) the first digit is removed. If you don't use a line access code (in most cases '0' is used), you have to remove the ':1' ! ! ! In case you want to use the prefix in the outbound routes, you have to enter '{prefix} to the dial command: SIP/{prefix}{number:1}@{gateway}

Group

Select here the previously created gateway group.

Update remote party ID / P-Asserted-Identity (CLIP)

These settings are just optional, as the provider replaces outgoing CLIP which is not valid with the default number of the SIP account.

T.38 support

In order to have the best fax support on the FXS ports, you have to deactivate the T.38 support option. A fallback to G.711 will be used instead.

Advanced Parameter

You have to enter the complete term

username=12345678t9

in the value-field and press the plus-sign.

Underneath you will see then a preview of the entry in the sip.conf file.

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In addition it is advised to activate the advanced options by clicking it to 'ON' and then pressing Show.


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Example of Sipgate trunking Inbound routes.

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Rule

Enter here a name for the according rule.

Date / Weekdays / Time

With these settings you can configure a time-controlled routing to different targets.

Pattern / Target

In the pattern you define which part of the incoming number is used to forward the call to the according extension.

Because we already receive the correct extension from the gateway group, we don't need any further number manipulation here.

In our example we forward incoming calls directly to the according extension.

The shown example is the easiest way for a block of numbers, but also other configurations or assignments are possible.

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In the Gigaset PBX go to "Administration" - "Routes" - "Outbound routes" activate the Advanced options by clicking it to 'ON' and then pressing Show.

 

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Example of Sipgate trunking Outbound routes.

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Rule

Enter here a name for the according rule.

Date / Weekdays / Time

With these settings you can configure a time-controlled routing.

Pattern

In the pattern you define how the outside line is seized. In our example all dialled numbers starting with '0' will use the Gateway group Sipgate trunking.

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