Quintum Technologies Tenor AS - Manual (Page 85)

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Chapter 6: Advanced Topic: SNMP/IVR
IVR
Interactive Voice Response (IVR) is a feature of the Tenor AS that enables you to offer services, such
as Pre-paid calling cards and Post-paid accounts to your customers. The Tenor AS uses the RADIUS
(Remote Authentication Dial-In User Service), for authenticating and authorizing user access to the
VoIP network. The RADIUS is a standard protocol which provides a series of standardized mes-
sages formats for transmitting and receiving dialed information, account data and authorization
codes between the network access gateway and the billing server. As a result, the RADIUS enables
the Tenor AS to interoperate directly with billing server application software from a wide range of
vendors. To provide redundancy, the Tenor AS supports two RADIUS servers: Primary and Second-
ary.
The IVR interface enables the Tenor AS to play back interactive pre-recorded voice messages to a
customer calling in from the Public Switched Telephone Network (PSTN), requesting information
such as account number, PIN number, and calling number. The caller is prompted for each piece of
information and the digits are captured by the Tenor AS and converted into RADIUS format. The
RADIUS will use the input data to identify the customer, verify the identity using the PIN code,
check the account status, and then send back messages in RADIUS format to authorize the Tenor AS
to proceed with the call. The call will then be routed over the VoIP network to the appropriate
remote Tenor AS.
You are able to pre-record and customize voice prompt files which lead the customer through the
calling card procedure. You can pre-record messages to meet your network and customer needs.
Seven languages are supported for voice prompts: English, French, Mandarin, Spanish, German,
Arabic, or Persian. The multiple language feature enables you to select multiple languages in which
to play voice recordings. For example, the welcome message will be played in Persian, and the fol-
lowing message will ask the user if they would like to hear the rest of the messages in English,
French, Mandarin, Spanish, German, Arabic, or Persian.
Through the Command Line Interface (CLI), you can configure all functions within the Tenor AS
that will be used for pre-paid/post-paid call services, including IVR and RADIUS data.
IVR Call Types
There are two call services Tenor AS supports through IVR: Pre-paid Calling Card and Post-paid
Account.
• Pre-paid Calling Card. A card with a set dollar amount to be used for placing voice calls. The
normal call flow for a pre-paid service starts with the caller dialing the pre-paid access number
from a regular phone. The Tenor AS prompts the caller for a card number and destination num-
ber which are sent to the RADIUS server (third party software) for verification.
• Post-paid Account. An account used for placing voice calls where the account number and
PIN (personal identification number) are used for security. The Tenor AS prompts the caller to
enter an account number and a PIN (personal identification number), which are sent to the
RADIUS server for verification. Normally, there is no limit on the amount or duration the caller
is authorized to talk.