1. giffgaff Operations

2. giffgaff operational
architecture
Network Charging Core
System Pre-paid Network
Billing platform
application layer
Network
Subscriber Management
Core
Portal Network Provisioning system
giffgaff hosted application layer
web servers and
architecture
Members using
giffgaff.com

3. The prepaid system keeps track of a members balance, current goodybag,
amount of goodybag they have used.
They also apply recurring goodybags, auto top ups and send us daily
reporting files on customers
These services have to be available for calls, texts and data to be used
Network Charging Core
System Network
Network
Subscriber Management
Billing platform
application layer
Portal Network Provisioning system
giffgaff hosted application layer
web servers and
architecture
The core network provides coverage for all the call traffic, which
includes text and data.
This also routes the incoming traffic to giffgaff mobiles and is
responsible for applying network bars.
All giffgaff members are provisioned on the core network systems
Members using
giffgaff.com This is the giffgaff portal, where members log in, can see the giffgaff offer, top up, buy
goodybags, raise a case to an Agent.
We have front end web servers that manage the pages, back end servers that manage the
processes and a database for transactions, customer details and history
Connected to this are the community and Help pages and the tool used by Agents.

4. giffgaff service issues

5. Where we have had problems – Oct 20th
loss of service (and partial service) (data only)
March 16th
Network Charging Core
System Network
Billing platform
application layer
Network
Subscriber Management
July 11th &
October 12th
(data,voice, text)
Provisioning system
application layer
giffgaff hosted In the occasions where giffgaff members
web servers and have lost voice service the issues have
architecture
Members using been on the Network Charging System,
giffgaff.com Subscriber Management Service or core
Data network

6. Where we have had problems
– provisioning SIMS
Network Charging Core
System Network
Billing platform
application layer
Network
Subscriber Management
Provisioning system
application layer
giffgaff hosted
web servers and
architecture SIMs are ordered and dispatched
Members using After dispatch all three areas have
giffgaff.com
to be updated with information so
that the SIMs will work

7. Where we have had problems
– goodybag issues
Network Charging Core
System Network
Billing platform
application layer
Network
Subscriber Management
Provisioning system
application layer
The Portal manages the goodybag controls –
giffgaff hosted
web servers and purchases, payment, rules etc, but the Prepaid
architecture system actually applies the goodybag as well as the
Members using
giffgaff.com queued and recurring goodybags.
If there are differences then this may prevent
goodybags being purchased

8. giffgaff service improvements

9. Where are we investing?
We are investing over
£9M in upgrading the
network charging
systems, additional Network Charging Core
System Network
resilience and capacity
Billing platform
application layer
Network
Subscriber Management
Network is
investing £10M in
sub management
and £1.5M a day
Provisioning system
in expanding the
application layer data network
We have added extra
giffgaff hosted capacity and more to
web servers and come this year in servers,
architecture
Members using discs and memory, for
giffgaff.com the web site

10. We have added other
improvements
File monitoring for SIM
provisioning x4 times a day Network Charging Core
System Network
Alerting for files not present
Billing platform
application layer
Network
Subscriber Management
Provisioning system
application layer
Goodybag monitoring
giffgaff hosted Full synchronisation check
web servers and Daily “inconsistency” report
architecture
Members using
giffgaff.com