[SIPForum-discussion] SIP Call Waiting Messages and Call Charges

[HM Kias]

Read the below post.
ISDN incoming call - inband info and announcements BEFORE
ANSWER*Question:*Is there a way to force Asterisk to send DSS1
PROGRESS message to PSTN with
indicator: "Inband information now available", before call is established
(even before ALERTING phase)? I also think that this indicator can be
contained in CALL PROCEEDING message.

My idea is to play not billed welcome message on Asterisk system. Just now
there is incoming SETUP, Asterisk replies with CALL PROCEEDING (without
indicator I presume - but I can think only from Asterisk trace, no ISDN
tester available at the moment). In ideal case there should be send PROGRESS
or CALL PROCEEDING message with that indicator.

How to setup this (for PRI and junghanns.net BRI)?

*Answer:* Use the Progress() application in your dialplan before you
Answer() the line. Use the Background() application with the 'n' flag or the
Playback() application with the 'noanswer' flag to play your announcement
(so the line is not Answer()'d automatically for you).



On Wed, Oct 5, 2011 at 3:14 PM, Stewart Hayles <shayles at neci.co.uk> wrote:

>  Hello all,****
>
> ** **
>
> I have a question I hope someone out there may be able to help me with
> understanding a bit more clearly.****
>
> ** **
>
> In Germany a new law is coming into effect where if a caller is held
> waiting on a line and listening to a queue message they are not charged for
> that portion of the call until a user actually picks up to speak with them.
> ****
>
> ** **
>
> I wondered how this would be implemented with regards to SIP carriers.
> Would the call be initially setup using early media to play the message?  Is
> there any fields/messages used for charging information between the network
> and PBX?****
>
> ** **
>
> I hope someone may have an understanding of what I am describing, would
> appreciate any details you may have on this if you have been involved in
> similar situation.****
>
> ** **
>
> BR,****
>
> ** **
>
> Stewart****
>
> ** **
>
> ** **
>  <http://www.neci.co.uk>  <http://www.neci.co.uk>
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-- 
HM Kias
91-9443467600
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