IAX service.

You can make calls to regular phone numbers anywhere in the world as well as internal Diamondcard.us phone numbers using the IAX2 protocol. You can do this with a softphone, an Asterisk server or any other device which supports the IAX2 protocol.

IAX softphone instructions.

Configure your softphone to use the following settings.

Protocol:    IAX2
Host:        usgw.ast.diamondcard.us OR eugw.ast.diamondcard.us
             Use usgw.ast.diamondcard.us if you want to connect to our USA server.
             Use eugw.ast.diamondcard.us if you want to connect to our European server.
Username:    Your_AccountID
Password:    Your_PIN_code
Audio codec: GSM, iLBC

Dial a number in international format: country code - area code - phone number. You can call other Diamondcard.us users by dialing their local Diamondcard.us number. You can find your local Diamondcard.us number at "personal #'s" page. To allow other Diamondcard.us users to call you set Registration ON in your softphone settings.

Asterisk instructions.

Configure your Asterisk server to use the following settings.

Add to your iax.conf.

; Diamondcard.us termination
[diamondcard]
type=peer
username=Your_AccountID
secret=Your_PIN_code
disallow=all
allow=gsm
allow=ilbc
; Use usgw.ast.diamondcard.us if you want to connect to our USA server.
; Use eugw.ast.diamondcard.us if you want to connect to our European server.
host=usgw.ast.diamondcard.us

Add to your extensions.conf.

; Diamondcard.us termination
[diamondcardterm]
exten => _011.,1,Dial(IAX2/diamondcard/${EXTEN:3})
exten => _011.,2,Congestion

; Include 'diamondcardterm' context into your local context.

This will allow you to dial numbers with a prefix of 011. After the prefix dial the country code and then the number you wish to call.