[SIPForum-discussion] Unified voicemail

[Rohin Koul]

I am not familiar with oracle products so I won't comment on that.
Typically in an IMS network voice mail service may be implemented as follows

1. a non IMS subscriber is connected through a gateway and originates a
call.
2. call arrives at gateway and gatway sends an INV to Proxy-CSCF
3. Proxy sends the call to S-CSCF
4. S-CSCF based on its filter criteria will send an INV to SIP-AS (if orig
subscriber has any services subscribed)
5. SIP-AS shall send the INV to terminating S-CSCF
6. Terminating S-CSCF will send INV to its SIP-AS and SIP-AS will send the
INV back to S-CSCF (SIP-AS is B2BUA)
7. Terminating S-CSCF will send INV to terminating gateway/subscriber
8. If the terminating subscriber is busy a 486 is returned.
9. 486 travels back to SIP-AS via S-CSCF
10. On reciept of 486 SIP-AS will not send 486 to originating user but
would divert the call to a Voice Mail server which would play the
appropriate announcement and record a message etc.

in short SIP-AS shall act as a B2BUA and do necessary signalling to divert
the call to VM server.
SIP-AS may also implement other variants of voicemail service like CFVMNR,
CFVM, CFVMB etc

On 10/12/2007, Joel Silva <joel.silva at novabase.pt> wrote:
>
>  For now, I'm not trying to do this in an IMS network.. What are the main
> advantages of doing this in an IMS network?
> I use the Oracle Communication and Mobility Server as the SIP AS.
>
> Thanks,
>
>
> *Joel Silva**
> *Analyst
>
>
> .............................................................................................................
>
> *Novabase**
> *Av. Eng. Duarte Pacheco, 15F . 1099-078 Lisboa* -* Portugal
> Tel. (+351) 213 836 300 . Fax (+351) 213 836 301 .
> mailto:joel.silva at novabase.pt <joel.silva at novabase.pt>
> *www.novabase.pt* <http://www.novabase.pt/>
>
>
>  ------------------------------
> *From:* discussion-bounces at sipforum.org [mailto:
> discussion-bounces at sipforum.org] *On Behalf Of *Rohin Koul
> *Sent:* segunda-feira, 10 de Dezembro de 2007 12:06
> *To:* discussion at sipforum.org
> *Subject:* Re: [SIPForum-discussion] Unified voicemail
>
>
>  Two more things I can think of are
> 1. Voice Mail server
> 2. SIP aplication server
>
> btw are you trying to do this in an IMS network ??
>
>
> On 10/12/2007, Joel Silva <joel.silva at novabase.pt> wrote:
> >
> >  Hello all!
> > Can someone give me some hints about the necessary requirements to build
> > a unified voicemail?
> > The ones that I identify until now:
> > 1. PSTN Gateway
> > 2. GSM Gateway
> >
> > Thanks,
> >
> >
> > *Joel Silva**
> > *Analyst
> >
> >
> > .............................................................................................................
> >
> > *Novabase**
> > *Av. Eng. Duarte Pacheco, 15F . 1099-078 Lisboa* -* Portugal
> > Tel. (+351) 213 836 300 . Fax (+351) 213 836  301 .
> > mailto:joel.silva at novabase.pt <joel.silva at novabase.pt>
> > *www.novabase.pt* <http://www.novabase.pt/>
> >
> >
> >  ------------------------------
> > *From:* discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org]
> > *On Behalf Of *Ritambhara Mittal
> > *Sent:* segunda-feira, 10 de Dezembro de 2007 10:33
> > *To:* Ritambhara Mittal; nidhi jain; discussion at sipforum.org
> > *Subject:* [SIPForum-discussion] need information on R3protocol
> > specs.????
> >
> >
> >
> >
> > *Ritambhara Mittal <ritambhara.mittal at yahoo.co.in>* wrote:
> >
> > Hey,
> > Do anyone know about R3 protocol specs.
> >
> > Thanks
> >
> >
> > *nidhi jain <nidhi_jain6680 at yahoo.co.in>* wrote:
> >
> > what is diversion...??
> > how diversion and replace parameter differ.
> >  ------------------------------
> > Save all your chat conversations. Find them online.
> > <http://in.rd.yahoo.com/tagline_webmessenger_3/*http://in.messenger.yahoo.com/webmessengerpromo.php>
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> >
> >
> >  ------------------------------
> > Get the freedom to save as many mails as you wish. Click here to know
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> >
> >  ------------------------------
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> >
> >
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>
>
> --
> "if you don't know where you are going,
> what difference does it make,which path you take"
> ---Cheshire Cat
>



-- 
"if you don't know where you are going,
what difference does it make,which path you take"
---Cheshire Cat
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