2. Sept 2005 Siemens awards the contract to Integratech Jan 2006 : starts C++ code development May 2006 Integratech shows the first Prototype (FECOTEL Villa Gessell ) Oct 2007 First installation in Grupo Junin IOC ( Bs As State ) March 2008 New installation in Cooperativa Galvez IOC ( Santa Fe State ) Integratech release RTP Gateway for IP Centrex Services for Telefónica Chile & Telefónica Argentina June 2009 Final Homologation by NSN (Nokia Siemens Network)

3. Carrier Grade Class 4 / 5 Softswitch Full Redundant system for High Availability Full IP Core Support main TELCOS protocols and open standards SIP for endpoint SIP Trunk SIGTRAN (SS7 over IP) MEGACO (H.248) RADIUS Off the shelf HW cPCI platform Scalable Integrated IVR Prepaid admin

5. Internet SS7 IP Softswitch TGw: Trunk Gateway SGw: Signaling Gateway AGw: Access Gateway

6. Free charge subscribers CLIP CLIR CLIR Ignore CLIR Ignore next call Last Call Return MALIC Hotline / Delayed Hotline Ring Test Subscriber Admin Call Blocking Operator Admin Call Blocking Black & White List Call Forwarding

7. 3 Party Services Call waiting Transfer Conference Inquire Remote services Activation/Deactivation Centrex PBX Prepaid Subscribers Multi owner accounts

9. Remote services Activation/Deactivation Local Time Wake up service Account Information Announcements Telemarketing Calling Card Weather Service

10. SIP SIGTRAN MEGACO SIP MEGACO Softswitch MEGACO (H.248) SIGTRAN (ISUP/IP) SIP Trunk SIP RADIUS

12. Integrated Alarm system Software & Hardware alarms SNMP Alarm information SNMP Alarms Traps Online Alarm Status SNMP & Web system information SNMP & Web Hardware status SNMP & Web Subscriber/Trunks status Online statistics Online Database Replication status

13. DPC Status HW Status Trunk Status SGP+SCTP Status Subscriber Status System Status …

15. SS7 Homologation (Telefónica de Argentina) 2006 SS7 Homologation (Telecom) 2007 SoftSwitch Homologation for IPCentrex project (Telefónica de Argentina / Chile - TLATAM ) 2008 Homologation by NSN June 2009

16. H.248 (MEGACO) Call generator / Access Gateway Simulator (June 2009) CALEA (4 th Q 2009) Unified Messaging ( 2Q 2010 ) SIP extensions (Presence, messaging) (2Q 2010 ) IPTV (to be defined upon tech / marketing specs ) Fixed & Mobile convergence ( under R & D Process )

17. Thought & Developed for IOC’s Full Adherence to Standards Off the Shelf Technology Price/Performance  Highly competitive Flexible & Powerful Prompt Customization On Demand

19. T. Le Breton 5731 Cap. Fed. Argentina +54-11 45715252 www.integratech.com.ar