VigorBX 2000 - Making Calls with a specified Caller ID
XIII. IPPBX
The DrayTek VigorBX 2000 supports up to 12 SIP trunks and up to 50 Alias numbers. An Alias number is associated with a SIP trunk and is used either to route incoming calls or to control the number used for Caller ID when making outbound calls.
This works by setting the From address of a SIP Invite packet (which is sent to initiate a call) so that when an outbound call is made, the From address would show the SIP Alias number followed by the address of the PBX system, instead of the main number or Account Name / Number.
The ITSP would need to accept the number used for the Caller ID - entering an unknown number will usually result in the call being rejected or the call being routed through with the primary number of the SIP trunk as the caller ID. This is because the ITSP will only accept numbers that are associated with the account.
Use of additional or specific Caller ID numbers may have additional charges associated with it which would be specified by the SIP provider / ITSP.
When configuring Caller ID on the VigorBX 2000, the settings are specific for each SIP trunk configured on the PBX system. These can then be configured to operate in one of three ways:
- All Extensions - This configuration would route all calls through the specified SIP trunk with the Caller ID number configured. This can be over-ridden with methods 2 or 3 if required.
- Specific Group Only - This configuration would apply to a specified Hunt Group only. All extensions in this Hunt Group calling through the SIP trunk that the Alias number is associated with, would present the Caller ID number associated with the group.
- Specific Extension Only - This configuration would apply to a specific Extension only. When this extension calls through the SIP trunk that the Alias number is associated with, would present the Caller ID number it is associated with.
In this example, the ITSP provides these numbers for use as DDI / Alias or Caller ID numbers, which will be used with these example configurations:
- 01632 960 000 - Main Number
- 01632 960 001 - All Extensions - Number used for outbound calls
- 01632 960 002 - Specific Group Only - Sales Hunt Group
- 01632 960 003 - Specific Extension Only - Sales1 Extension
To configure a Caller ID number that would apply for all calls through the SIP trunk, go into the SIP Trunk settings for the individual trunk under [IP PBX] > [Trunks] > [SIP Trunks] and select the SIP trunk index number to modify. In the SIP trunk settings, set the Out-going call CLI to Alias Number:

Once that has been set, an option to specify the number used will appear, enter the number in that field, in the format specified by your SIP trunk provider.
There is also a setting for Mode which can be configured for Normal mode or P-Preferred Identity, this setting can be left on its default of Normal mode unless your SIP trunk provider specifies that P-Preferred Identity is required.
Click OK to save and apply the change to the SIP trunk.

Once that is set, the PBX system will send that number for all calls through that SIP trunk.
To apply a Caller ID to a specific group of extensions, these extensions must be part of a Hunt Group which is typically used to receive calls but can also be used to apply a specific Caller ID to a group of extensions.
This is then linked to an Alias Number configured so that any calls received on that Alias number would go through to the Hunt Group. Any outbound calls made by the Hunt Group would use the Caller ID of the Alias number once configured.
To configure a Hunt Group, go to [IP PBX] > [PBX System] > [Hunt Group]:

In the Hunt Group settings, click on the first available Index number:

The Hunt Group can then be configured as required. A Hunt Group needs to have an extension number specified which is unique to the Hunt Group,
Add Extensions from the Available list into the Chosen list to select members of the hunt group and click OK to save and apply the Hunt Group configuration.

With the Hunt Group configured, this can now be set up as an Alias Number. This is configured from [IP PBX] > [Trunks] > [SIP Trunk], click the Alias List link:

Select the first available Index number:

In the Alias configuration, configure these settings:
- Active: Enable
- Alias Name: Specify a name to identify the Alias number
- Alias Number: Specify the DDI / Alias number in the format specified by the ITSP
- Labeling on caller ID: This setting is used to identify Incoming calls. If this is enabled, it will show the Name or Number of the Alias on extension handsets when a call is received on this Alias number
- Alias of SIP Trunk: Select the SIP Trunk that the number is associated with
- Out-going call CLI: Set this to Alias number so that the number is used as out-going Caller ID
- Answer Mode: Select Forward to Group and the number of the Hunt Group

Click OK to save and apply the Alias Number configuration.
To apply a Caller ID to a specific Extension, it must be linked to an Alias Number so that any calls received on that Alias number are routed to that Extension. Any outbound calls made by this Extension will display the Caller ID of the Alias number once configured.
To set up the Alias Number, go to [IP PBX] > [Trunks] > [SIP Trunk], click the Alias List link:

Select the first available Index number:

In the Alias configuration, configure these settings:
- Active: Enable
- Alias Name: Specify a name to identify the Alias number
- Alias Number: Specify the DDI / Alias number in the format specified by the ITSP
- Labeling on caller ID: This setting is used to identify Incoming calls. If this is enabled, it will show the Name or Number of the Alias on the extension handset when a call is received on this Alias number
- Alias of SIP Trunk: Select the SIP Trunk that the number is associated with
- Out-going call CLI: Set this to Alias number so that the number is used as out-going Caller ID
- Answer Mode: Select Forward to Extension and select the Extension number

Click OK to save and apply the Alias Number configuration.
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