Zeck Audio STAC Force180 Guia de Instalação descarregar pdf (Página 28)

Rev. 1.00 12-02-13 28/41

Command

Purpose

Step 1

[node](callout)# [no] nat-traversal flows

Configured if INVITE requests are sent

out through flows.

SIP AOC (Advice of Charge)

First appeared in build series: 2012-12-03

With these commands the SmartNode can receive and send Advice Of Charge in ASN1/XML format.

Please note that ASN1 format is only supported during a call.

Mode: interface sip

Command

Purpose

Step 1

[node](if -sip)[IF_SIP]#[no] aoc-s { accept |

emit }

Enable/disable the SIP interface AOC

accept/emit feature at the beginning of a

call (default: disabled)

Step 2

[node](if -sip)[IF_SIP]#[no] aoc-d { accept |

emit }

Enable/disable the SIP interface AOC

accept/emit feature during a call

(default: disabled)

Step 3

[node](if -sip)[IF_SIP]#[no] aoc-e { accept |

emit }

Enable/disable the SIP interface AOC

accept/emit feature at the end of a call

(default: disabled)

Step 4

[node](if -sip)[IF_SIP]#[no] aoc-format { asn1

| xml }

Sets the SIP interface AOC format

(default: asn1)

Sending tax-pulses on FXS for AOC

First appeared in build series: 2012-12-03

Received AOC information can be forwarded from ISDN or SIP interfaces towards analogue FSX lines.

The AOC information is converted from units or currency to a number of tax pulses which are sent out.

AOC-D information received during the call is converted into tax-pulses and these tax pulses are sent

out. Subsequent AOC-D information is converted into tax-pulses as well, but only the number of tax-

pulses is sent out which is above the total of already sent pulses.

For example: During a call three AOC-D messages are received: the first results in 2 tax pulses, the 2 tax

pulses are sent out immediately. The second AOC-D message results in 4 tax pulses, then 2 tax pulses

are sent out. Now the third AOC-D message results in 5 tax pulses then only one is sent out. The total of

sent out tax pulses is now 5 which corresponds to the amount received with the last message.

Technically the same happens for AOC-E information which is received at the end of a call. But there are

two major issues with this. If the user who connected the FXS port did terminate the call with a hang-up,

then it is not possible anymore to send tax pulses to that user because the line is on-hook and nobody is

listening. The second issue is when the tax pulses from the AOC-E are no higher than the total of already

sent pulses form AOC-D messages, in which case no additional pulses have to be sent.

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