Configuring ISG Support for Prepaid Billing
How to Configure ISG Support for Prepaid Billing
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Benefits of ISG Prepaid Billing
Concurrent Prepaid Service Access
The ISG Support for Prepaid Billing feature can support concurrent prepaid service access while
maintaining the same pool of quota at the prepaid billing server. ISG services can be configured for
concurrent or sequential access. Concurrent access allows users to log in to a service while
simultaneously connected to other services.
Real-Time Billing
The ISG Support for Prepaid Billing feature allows for real-time billing with maximum flexibility,
regardless of the type of service and billing scheme. Users can be billed on a flat rate, air-time, or volume
basis.
Redirection Upon Exhaustion of Quota
When a user runs out of quota, ISG can redirect the user to a portal where the user can replenish the quota
without being disconnected from the service.
Returning Residual Quota
ISG can return residual quota to the billing server from services that a user is logged in to but not actively
using. The quota that is returned to the billing server can be applied to other services that the user is
actively using.
Threshold Values
ISG enables you to configure threshold values that cause prepaid sessions to be reauthorized before the
subscriber completely consumes the allotted quota for a service.
Traffic Status During Reauthorization
You can prevent revenue leaks by configuring ISG to drop connected traffic during reauthorization of a
service. The user remains connected to the service and need not log in to the service again, but no traffic
is forwarded during the reauthorization process. This prevents a user from continuing to use a service
for which the user has run out of quota while ISG sends a reauthorization request to the billing server.
Simultaneous Volume-Based and Time-Based Prepaid Billing
ISG supports rating on both time and volume simultaneously for prepaid services. The prepaid billing
server may allocate quotas in both time and volume, and ISG monitors the session on both these
parameters. ISG performs a reauthorization whenever either of these quota types is exhausted.
How to Configure ISG Support for Prepaid Billing
This section documents the following tasks:
• Configuring RADIUS Attribute Support for ISG Prepaid Billing, page 5 (required)
• Creating an ISG Prepaid Billing Configuration, page 6 (optional)
• Enabling ISG Prepaid Billing, page 8 (required)
• Redirecting Subscriber Traffic upon Exhaustion of Credit, page 11 (optional)
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