MVTS & PortaBilling Integration between MVTS (Mera VoIP Transit Softswitch) and PortaBilling100 Vancouver, BC July 2004 Porta Software Mera Networks Infrastructure for global communications

MVTS & PortaBilling100 MVTS features  H323 gatekeeper and proxy (both signaling and media) functionality  Secure network peering, network topology hiding  Dynamic modification of network topology  Flexible routing, fail-over routing  Seamless interoperability with equipment from different vendors (Cisco, Quintum, VocalTec, Clarent, Samsung, NSG, D-Link, etc.)  NAT/Firewall solution PortaBilling features  Web interface for service provisioning (accounts, customers, rates, CDRs, etc.)  Real-time authentication and authorization of calls  Flexible routing management (multiple vendors, routing preferences, least-cost routing (LCR), custom routing plans for individual customers)  Real-time billing of completed calls, ASR and cost/revenue reports

Integration between MVTS and PortaBilling100  Endpoint registration (authentication)  Call authorization  Call routing  Billing completed calls Operations performed in tandem by MVTS and PortaBilling100:

Endpoint registration Endpoint attempts to register with gatekeeper (MVTS) MVTSPortaBilling100 Upon successful authentication, MVTS registers the endpoint MVTS sends authentication request to PortaBilling100 PortaBilling100 verifies that such an account exists, is not blocked, and so on PortaBilling100 sends confirmation or rejection

Call authorization After the time is up, or the customer disconnects, the call is cleared and accounting is sent to PortaBilling100 MVTS Called party Calling party PortaBilling100 MVTS sends authorization request to PortaBilling100 PortaBilling100 verifies that such an account exists, whether calling this destination is allowed, and what is the maximum allowed call duration PortaBilling100 sends confirmation (including maximum credit time) or rejection MVTS connects the call Endpoint attempts to make a call

Call routing MVTS PortaBilling100 Vendor A – preference 5, $0.05/min Vendor B – preference 6, $0.07/min Vendor C – preference 5, $0.04/min A B C B,C,A PortaBilling searches the available routes and classifies them according to preference/price MVTS requests routing for the specified number A list of routes is returned to MVTS MVTS attempts to send the call via the first route If that fails, MVTS tries the second route, and so on

Routing in PortaBilling100  Routes can be arranged into preference groups (according to parameters such as quality, ASR, etc.)  For routes within the same group, least-cost routing (LCR) can be applied  If necessary, huntstop can be used to “cut off” lower priority routes  An optimal route list is calculated in real time for every call

Billing completed calls MVTS PortaBilling100 Called party Calling party PortaBilling charges the account/customer who made the call and calculates the termination cost, depending on which vendor was used New CDR, balance modification After the call is disconnected, MVTS sends the accounting to PortaBilling100

H323 and SIP network interconnection Session Border Controller (protocol converter) SIP-based network H323-based network The protocol converter can be used to integrate several networks using different protocols.

PortaSwitch & SIP-HIT PortaSwitch allows:  Easy web-based provisioning and management of SIP accounts  Auto-configuration tool for SIP UAs (Cisco ATA, etc.)  Class 5 features (call transfer, abbreviated dialing, customer-based numbering plans, etc.)  Special features (follow-me services, unified messaging integration, etc.) SIP-HIT allows:  Terminating calls to legacy H323 networks or receiving calls from such networks  Codec conversion, solving vendor incompatibility issues  Optional usage of MVTS for advanced call handling

SIP H323 network interconnection with PortaSwitch+SIP-HIT H323 network PortaSIP SIP-HIT PortaBilling100 PortaSIP provides end-point registration, NAT traversal, etc. SIP-HIT provides call transition to H323 networks Calls to H323 destinations are routed to SIP-HIT PortaBilling100 provides authentication, number translation, authorization, routing and billing of completed calls

Conclusion  Porta Software's PortaBilling/PortaSIP and MERA Networks' MVTS are highly symbiotic products - the "yin and yang" of VoIP. Each component's functionality ideally fits the other's to create a complete and perfect VoIP solution, with scalable architecture and open protocols for easy integration.