R2511-HP MSR Router Series Voice Configuration Guide(V5)

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Accounting_Stop request to the RADIUS server, and releases the call upon receiving an
Accounting_Stop acknowledgment.
• start-no-ack—When the call setup begins, the voice gateway sends an Accounting_Start request to
the RADIUS server, and directly connects the call without waiting for an Accounting_Start
acknowledgment. If the voice gateway receives an Accounting_Start unacknowledgment from the
RADIUS server after the call is connected, it immediately releases the call. After the call ends, the
voice gateway sends an Accounting_Stop request to the RADIUS server and releases the call only
after it receives an Accounting_Stop acknowledgment.
• stop-only—The voice gateway sends an Accounting_Stop request to the RADIUS server only when
the call ends, and it releases the call only after receiving an Accounting_Stop acknowledgment.
Voice dialing process
There are two types of dialing process for voice calls: one-stage dialing and two-stage dialing.
Two-stage dialing consists of caller number process, caller number process with IVR, and card
number/password process.
1. One-stage dialing—The calling party directly dials a called number. The RADIUS server performs
authentication for the calling party, authorization for the called party, and accounting according
to the AAA configuration for one-stage dialing process.
2. Two-stage dialing—The calling party first needs to dial an access number and then a called
number. The RADIUS server performs different AAA operations for different access numbers:
3. Caller number process—The calling party first dials an access number, and after hearing a dial
tone, dials a called number. The voice gateway originates a call according to the called number.
4. Caller number process with IVR—The calling party first dials an access number. The voice
gateway plays a prompt tone. The calling party performs operations as prompted, and then dials
a called number. The voice gateway originates a call according to the called number.
5. Card number/password process—The calling party first dials an access number. The voice
gateway plays a prompt tone. The calling party enters a card number and password as prompted,
and then dials a called number. The voice gateway originates a call according to the called
number.
The RADIUS server needs to obtain the caller's identity information, which might be the calling number
or the preset card number and password, before performing AAA operations for a voice call. The voice
gateway uses the collected calling number or card number and password to originate an authentication
request to the RADIUS server, and determines whether call origination is allowed according to the
returned result.
The AAA function for one-stage dialing process applies to all one-stage dialing users. For two-stage
dialing users, you can configure different access numbers. For these access numbers, you can configure
different AAA schemes and different two-stage dialing attribute parameters (for example, redial attempts
and number of digits in a card number/password). In addition, you can customize the detailed access
procedure according to the specific requirements. For example, you can set these access numbers as
private line auto ring-down (PLAR) numbers on voice subscriber lines to implement the auto-dialing of
access numbers.
If a voice call is originated from an IP network, the voice gateway does not support the direct dialing of
access numbers, and for one-stage dialing, it supports only accounting, instead of authentication and
authorization.
The voice gateway does not support the nested dialing of access numbers. That is, a user cannot dial an
access number again after dialing it during a call originated from or terminated to a voice gateway.