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INAP vs CAP

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sripathys
INAP vs CAP

Hi,
can someone please update where exactly INAP CS1 / INAP CS2 and CAP protocol are used in a IN network from the perspective of signalling ( call setup in home network vs Roaming ) and between which SS7 signaling nodes ?

Rgds
sripathy

Edited by: admin on 05/16/2010 - 04:32
pramod
Re: INAP vs CAP

Hi sripathys
INAP vs CAP

The basice differenece is INAP is for fixed networks an CAP is for mobile networks to do the billing
IN -CS1  is the first standardised stage fo IN
IN -CS2 is the second  standardised stage fo IN and it supports broadband services,bearer services ,call party handling etc... which r the limiations of IN-CS1

INAP,CAMEL protocols r used as interface between SSP,SCP

SSF:service swithcing function
SCF:service control function
SDF:service data function
SRF:specialised resource function
        INAP
SSFSCF
        INAP
SCFSRF 
        CAMEL
SSFSCF     

INAP:
eg:(VCC)

CAMEL:
(prepaid billing for Mobiles,SMS-MO,SMS-MT etc...)

sripathys
Re: INAP vs CAP

Thanks a lot pramod for the detailed explanation.
I'm new to these concepts of fixed and mobile networks . Is my understanding of fixed networks refers to PSTN and mobile networks refers to where GSM is deployed.

I'm working on a Prepaid billing product and we receive both INAP & CAP signaling messages as part of call setup. The gsmSSF in some of customer networks send INAP InitialDP message to our gsmSCF and where CAMEL is deployed we receive CAP IDP.

from the explanation that you given does this mean we support both fixed and mobile networks ?
Fixed networks send PSTN calls ( landline) towards Prepaid billing product and mobile networks send Mobile orginated calls ?

Rgds
sripathy

pramod
Re: INAP vs CAP

Hi
yes if u recieve INAP and CAP means  ur  IN application (SCP) is supporting
both Fixed and Mobile networks,but both r for real time billing only.
Not all PSTN calls r routed ur IN(prepaid product)
For Normal PSTN calls charing will be done at the end based on CDR's
Only IN calls will b routed to IN.

nishantgoel87
Re: INAP vs CAP

Hi Sripathys,

INAP and CAP are IN protocols and both of them are used in wireless networks.

CAP is an enhanced version of INAP protocol .
one major difference is that CAP supports real time charging in roaming as well whereas INAP doesn't.

different versions of CAP release support different services as describer below.

CAMEL Phase I - No access to SRF,NO online charging for SMS in HOME network and in Roaming.
CAMEL Phase II- Voice online charging, Access to SRF, SMS - Offline charging while roaming.
CAMEL Phase III- Voice online charging, SMS ,Packet - Online charging while roaming

Kishore Sahu
Difference between Phases of CAMEL stack

Hi,
Can someone tell me what is the basic difference between Camel phase-1 & 2. and Phase-3 & 4

Thanks
kishore

hoangsonk49
Difference between Phases of CAMEL stack

Hi, the major difference between Camel phases are BCSM. For example: Camel phase 2 does not support value of analyzedInformation in BCSM while phase 3 can do that. And phase 4 can do more than that by supporting tMidCall, oTermSeized, callAccepted, ... according to the TS document from 3gpp.