Knowledgebase

1. DID configuration for VSPortal:
    - http://docs.voipswitch.com:8080/display/VDoc/DIDs+-+Configuration
      This link above describes how to enable DIDs in VSPortal and also
      how to configure them. Also you will find here which DID suppliers are supported .
    - http://docs.voipswitch.com:8080/display/VDoc/Web-based+callback+-+VSPortal
    This link will describe an example of web callback in VSPortal using DID numbers.
2. DID configuration in VSM:
    - http://docs.voipswitch.com:8080/display/VDoc/Working+with+DIDs
    This link above will give you a short introduction to DID and example configuration how to point DID to user.
    - http://docs.voipswitch.com:8080/display/VDoc/ANI%2C+DID%2C+PIN+callback
      http://docs.voipswitch.com:8080/display/Tutor/How+to+configure+a+simple+callback+scenario
    This links above will give you anothe example how to use DID for callback call. Especially i suggest to look at second link its very detailed and  will show step by step configuration.
3. General questions:
    - Can I offer DIDs - virtual phone numbers to voip users?   
    Yes, definitely. VoipSwitch supports DIDs in many ways. You can associate phone numbers with end-users so that if one dials a DID it will ring on an
    SIP phone or our softphone (SIPLink) or will be transferred to voicemail or forwarded to any other     phone number. Call forwarding and voicemail settings are
    configurable through the web interface. Usercan decide on which events, like busy, no available, offline, the call is either transferred to voicemail or sent
    further.Users can also purchase DIDs through the web interface. They can select the country/area and place an order which is realized automatically.
    The setup fee and/or monthly fee is deducted from the customer's account and immediately thereafter the DID can be used.The system supports DIDs - phone
    numbers stored in local database, for example if have own stock and want to sell phone numbers online. There is special tool for importing the phone numbers
    into the database. This way also allows to connect to any wholesale DID supplier. Another way is to connect to a DIDs supplier through API.
    Such solutions are offered by voxbone.com and didx.net The main benefit is that you do not have to keep own stock of DIDs from various regions what is
    costly, instead your system will connect to the provider and place an order automatically with immediate delivery at the exact moment when your customer
    click
    order button on your website.More on DIDs scenarios can be found here.
    - How for ANI/DID/PIN callback?
    Similarly like in the calling cards scenario you can use a DID rented from a dids provider or have an own gateway connected to local telecom company.
    The difference is that in the callback the calls are used only for triggering the callback and therefore they never get connected, the system rejects
    them as soon as they come. Thus the number of required channels will be much less that in calling cards scenario when the channel stays busy by the    
    whole duration of the call. In the callback the connection from the system to customer is realized independently, through the termination carrier    
    defined in the dialling plan (not through the link used as an access number).

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