Dials a Number and

presses send button

SDP

IAM

GSM MO Prepaid Call Flow

MSC/VLR MSC/VLR

SRI Ack

Request PRN

PRN Ack

SCP

ANM

Request IDP Send BCSM and Con/Conn

Scriber’s Data InquirySDP checks subscriber’s

balance for this call

Calling Number

Called Number

Paging

Allow For Call

BSS

Paging Message

Paging Ack

Response Message

SRI

I want to use GPRS

Forwards CAMEL Profile

CCN

SDPSDP checks subscriber’s

balance and reserves per unit Cost in advance defined against

content IDs

Per unit cost reserved- activate PDP Context

SGSN requests GGSN to activate PDP context

Gr

Gn Gi

Cache Server

Gb

WARID APN Call Flow

Returns CAMEL Profile

IDNS resolves query and givesIP of the destination GGSN

SGSN queries IDNS about destination GGSN

Um

BSS

169.254.2.54

Activates PDP context and assigns an

IP address

Warid APN Traffic

Forwards to Cache Server

Router

Requests HLR Profile

GGSN

Firewall

SASN passescontent IDs

Forwards these content IDs

I want to use GPRS

Forwards CAMEL Profile

CCN

SDPSDP checks subscriber’s

balance and reserves per unit Cost in advance

Per unit cost reserved- activate PDP Context

SGSN requests GGSN to activate PDP context

Gr

Gn GiGb

Returns CAMEL Profile

IDNS resolves query and givesIP of the destination GGSN

SGSN queries IDNS about destination GGSN

Um

BSS

169.254.2.54

Activates PDP context and assigns an

IP address

Router

Requests HLR Profile

GGSN

Firewall

MIEPWAP. Warid Call Flow

ForwardsData

WAP. WaridTraffic

SASN passescontent IDs

Forwards these content IDs

I want to

send MMS

Forwards CAMEL Profile

CCN

SDPSDP checks subscriber’s

balance and reserves per unit Cost in advance

Per unit cost reserved- activate PDP Context

SGSN requests GGSN to activate PDP context

Gr

Gn GiGb

Returns CAMEL Profile

IDNS resolves query and givesIP of the destination GGSN

SGSN queries IDNS about destination GGSN

Um

BSS

169.254.2.54

Activates PDP context and assigns an

IP address

Router

Requests HLR Profile

GGSN

Firewall

MMSC

MTAMIEPMMS Call Flow

ForwardsData

MMSTraffic

Forwards these content IDs

SASN passescontent IDs