International SIP 2004, January 20-23, Paris France

IP-PSTN

I am doing my PG from Indian Institute of
Sciences(IISc),Bangalore,India. 

My question is whether it is possible to surf the net
& simultaneously receive calls fom PSTN.This is
possible using DSL & ISDN. But can we acheive this on
POTS. 

Right now we have an application where an internet
user is prompted of an incoming call.But i am thinking
of taking this application a little further by
allowing the user to receive the incoming call using a
mic & a speaker( Headset) same as voice chat,without
disconnecting the net. 

Thus the calling party will be speaking through the
normal PSTN phone & the called party(internet
user)will talk on the mic.It will require VoIP &
certain IP-PSTN media gateways. 

can you comment on the feasibility of this project. 

I will be glad if u can guide me in this regard 

Yogesh Swami 
Indian Institute of Sciences(IISc),Bangalore 
India 

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Re: IP-PSTN

You might want to check out SPIRITS WG in the IETF. One of the SPIRITS 
staple services does exactly that. Look at the Pre-SPIRITS 
Implementations RFC.

Regards,
Alec

yogesh swami wrote:

>I am doing my PG from Indian Institute of
>Sciences(IISc),Bangalore,India. 
>
>My question is whether it is possible to surf the net
>& simultaneously receive calls fom PSTN.This is
>possible using DSL & ISDN. But can we acheive this on
>POTS. 
>
>Right now we have an application where an internet
>user is prompted of an incoming call.But i am thinking
>of taking this application a little further by
>allowing the user to receive the incoming call using a
>mic & a speaker( Headset) same as voice chat,without
>disconnecting the net. 
>
>Thus the calling party will be speaking through the
>normal PSTN phone & the called party(internet
>user)will talk on the mic.It will require VoIP &
>certain IP-PSTN media gateways. 
>
>can you comment on the feasibility of this project. 
>
>I will be glad if u can guide me in this regard 
>
>Yogesh Swami 
>Indian Institute of Sciences(IISc),Bangalore 
>India 
>
>
>__________________________________________________
>Yahoo! Plus - For a better Internet experience
>http://uk.promotions.yahoo.com/yplus/yoffer.html
>_______________________________________________
>PINT mailing list
>PINT <at> lists.bell-labs.com
>http://lists.bell-labs.com/mailman/listinfo/pint
>  
>

Re: IP-PSTN

Hi Yogesh,

Yes, this is possible.
Infact the requirements for this  service (Internet call waiting) 
is presently being addressed by SPIRITS forum of IETF.

You can get more details from :-

http://www.ietf.org/html.charters/spirits-charter.html 

reg,

SUBHANSHU TIWARI

On Mon, 9 Jun 2003, [iso-8859-1] yogesh swami wrote:

> 
> 
> I am doing my PG from Indian Institute of
> Sciences(IISc),Bangalore,India. 
> 
> My question is whether it is possible to surf the net
> & simultaneously receive calls fom PSTN.This is
> possible using DSL & ISDN. But can we acheive this on
> POTS. 
> 
> Right now we have an application where an internet
> user is prompted of an incoming call.But i am thinking
> of taking this application a little further by
> allowing the user to receive the incoming call using a
> mic & a speaker( Headset) same as voice chat,without
> disconnecting the net. 
> 
> Thus the calling party will be speaking through the
> normal PSTN phone & the called party(internet
> user)will talk on the mic.It will require VoIP &
> certain IP-PSTN media gateways. 
> 
> can you comment on the feasibility of this project. 
> 
> I will be glad if u can guide me in this regard 
> 
> Yogesh Swami 
> Indian Institute of Sciences(IISc),Bangalore 
> India 
> 
> 
> __________________________________________________
> Yahoo! Plus - For a better Internet experience
> http://uk.promotions.yahoo.com/yplus/yoffer.html
> _______________________________________________
> PINT mailing list
> PINT <at> lists.bell-labs.com
> http://lists.bell-labs.com/mailman/listinfo/pint
> 
>