1. Voice services in NGN/IMS architectures March 2008

2. Topex multiSwitch Topex multiSWITCH is a carrier-class softswitch solution Scales up to several millions BHCA multiSWITCH = CSC+SBC+MGC+BGCF Complete Softswitch solution - Topex SMG In terms of TDM – all CLASS4 and CLASS5 features

3. Topex multiSwitch Protocols and Interfaces ●SIP: UAC, UAS, Register, Proxy, Redirect ●H323: Gateway functionality ●T38: Both with SIP and H323 ●RADIUS ●SS7: MTP 1-3, ISUP, SCCP, TCAP ●SNMP ●Digital signaling: EuroISDN, R2D ●Radio: Tetra, TetraPol ●Analog: FXS/FXO, E&M ●SIGTRAN: M3UA,M2UA ●Media Gateway Control: MGCP/H248/MEGACO ●DIAMETER ●COPS

4. Topex multiSwitch CLASS4 Features Very advanced routing engine: ●Gateway load ●Route capacity ●Precedence/accessibility of destination GW ●Priority routing ●Day of week/Time of day CDR can go in CSV text files, DB(PostgreSQL, MySQL) or RADIUS server Allows for “Hosted softswitch” applications Advanced IP-based ACL Detailed Call Statististics: Answer Seizure Rate, Average Call Duration, Call Failure Rate

5. Topex multiSwitch CLASS5 and Centrex Features CLASS5/Centrex telephony services: ●CallForward,CallPickup, CallHunting, CallForking,CallWaiting, CallHold/Retrieve, Callback, Wake-up, etc… Multiple aliases for each account Advanced ACL VoiceMail and VoiceMail 2 Email services Centrex groups and subgroups SIP/RTP NAT Traversal Web agenda for each user Click2Dial

6. Topex multiSwitch IP Centrex services 80% of revenue comes from 20% of the users Carrier implementing IP-Centrex can offer high-degree of customization to their customers. Very powerful and flexible IP-Centrex facilities Internet VPN Topex Softswitch with IP Centrex application Enterprise with Centrex group memebers

7. Topex Pre-paid and Billing modules Features Identification by PIN and ANI Play credit Play time PDF generated invoices Multiple Rate Tables: ●By call direction ●By call traffic Traffic volume limitation Redefinition of billing time- intervals Web billing module

8. Topex NGN solution architecture

9. CLEC for CLASS4

10. ISP going double play

11. CATV with data network going Triple Play

12. Topex Media and Signaling Gateways SCALE PRODUCT NAMEAPPLICATIONSCAPACITY Small TOPEX miniGateway VoIP/E1 PRI VoIP/ISDN BRI VoIP:H.323,SIP 2 E1 60 TDM / 60 VoIP channels Medium TOPEX Qutex VoIP/E1 VoIP/ISDN BRI TDM Landline/Mobile VoIP/Mobile Signaling conversion TDM: E1/SS7/ISDN/R2 VoIP: H323, SIP 4 E1 trunks 20 BRI lines 10 mobile channels 40 FXS/FXO connections 60 VoIP channels Large Topex multiAccess VoIP/E1 VoIP/ISDN BRI TDM Landline/Mobile VoIP/Mobile Signaling conversion TDM: E1/SS7/ISDN/R2 VoIP: H323, SIP 4 E1 trunks 30 mobile channels 32 BRI lines 120 FXS/FXO connections 60 VoIP channels Extra- large Topex EoneS E1 Switch & Signaling conversion TDM: E1/SS7/ISDN/R2 VoIP: H323, SIP 20E1 switch 300 TDM (10E1) 300 VoIP channels

13. Topex technical support Over 25 Support technicians Direct support of Engineers and Developers Presence through its partners in every district in Romania We offer 24/7 contract-based support and network monitoring

14. Conclusions Migration to NGN/IMS is inevitable Lower cost of ownership: one network instead of separate networks IP is becoming the universal protocol used to provide most new services Economic Analysis of PSTN Migration to NGN indicates a Pay-Back of 2-3 years after the deployment is complete and an impressive reduction of OPEX

15. sales@topex.ro www.topex.ro Thank you!