P909 PIR2.4 contribution

Virtual Second Line service scenario

The old story

PSTN

PSTN

Today’s story (I)Internet

ISP Connection to the PSTN

Today’s story (II)

Busy condition found

Rafael GómezVSL SubscribersDatabase

Carlos GonzálezzRaul Gonzálezz

Is this a proud VSL subscriber ?

Yes

Today’s story (III)

PSTN

Internet

ISP Connection to the PSTN

RING!!

You’ve got an incoming callfrom number XXX. Do you accept it?

YES

Hello, Miguel!

Hi, Raúl!

Today’s story (IV- sad end)

PSTN

Internet

ISP Connection to the PSTN

RING!!

You’ve got an incoming callfrom number XXX. Do you accept it?

NO, I don´t want to talk tosuch a bore

Once again the answering

machine.

Mr. Gómez is now busy,...

Today’s story (V)

PSTN

Internet

ISP Connection to the PSTN

Call XXX

RING !!

Hello?

Hello, Miguel.You did call mesome time ago...