Q3 has a proven track record and in-depth knowledge in the VoIP software development and implementation services for a range of Voice over IP telephony software products and has helped several software companies achieve the benefits of reduced operational overheads and implement best practices in development and maintenance of telephony products. Q3 has the tools, processes and experience necessary to help software companies develop innovative VoIP solutions quickly and cost-effectively.

Our solutions help software companies develop, validate and deploy complex VoIP solutions by providing them the vital tools, expertise, and resources needed to integrate and implement their customized IP Telephony solutions. We help companies choose the right technology to meet their business demands and get value out of their existing technology. Our complete package of end to end solutions comprises project management, solution preparation, solution design and development and solution deployment.
Expertise in VoIP

• Core Networks: PSTN, IP, VOIP, RTP, SIP/SIGTRAN, MGCP, E911 Integration with platforms like Intrado and TCS
• Gateways: Access, Trunk, Signaling
• Media Server: IVR, Messaging, Conferencing, Speech, Voice Mail
• Application Server: IP Centrex, Web, Video, Presence, Wireless
• Session Border Controller: Control, Proxy, Security, NAT
• Test and Monitoring: QOS, Traffic Shaping, Network Mgmt, Signaling
• Enabling Technologies: SIP Stacks, Middleware, SDK, Billing, Provisioning
• Phones and Applications: Phones, Softphones, WiFi, Handsets, and Video Terminals
• IP PBX, 3GPP (IMS)
• Call Recording and Monitoring Software
• Digital and VOIP Ready Systems
• Secured Conference Systems
• Web Based Administration
• Remote Access & Support
• Management Reporting
• Computer Telephone Integration (CTI)
• CRM Integration: Integration of CRM tools with PBXs to record and monitor calls using TAPI
• Call Simulation: Call Simulation software tools using TAPI libraries. The call simulation software is used for load testing and performance testing of VOIP applications.

Expertise in SIP SIP Proxy Server
Expertise to design, develop and deploy secured, standards compliant SIP servers for Service Providers. Expertise includes the following:

• SIP registrar, proxy, and location server
• Compliance with SIP 2.0 (RFC 3261 and related RFC’s)
• UDP, TCP or TLS transport for SIP signaling
• Interoperability with 3rd party end-points, IP phones, PSTN gateways, soft-switches and unified messaging systems
• Web-based provisioning, administration and statistics

SIP based Endpoints Strong expertise in design and development of standards compliant SIP based intelligent end points.
Design and Development of various Telephony features. Functionalities expertise includes:

• Features rich Graphical User Interfaces Design and development. User Privileges based UI access
• Multiple Lines/ Calls Appearances
• Remote Provisioning
• Locating SIP servers – SIP DNS SRV
• Shared call/ Bridged Call Appearance
• User Presence - Dialog based and SIMPLE/PUBLISH based; Busy Lamp Field (BLF)
• Text Messaging (IM)
• Voicemail, Message Waiting Indicator (MWI)
• Caller, callee information (Display Name, UserID/ Number), Privacy (*67) (information hiding), DND (Do Not Disturb) - Phone basis & per line basis
• Calls log: Incoming, outgoing, missed, redial
• Contacts list (Phonebook)
• Call Features: Call hold/Retrieve, Call waiting, Call divert (forward) – Phone basis & per user basis, Call return (*69),Call pickup, call park, Intercom,
• Transfers: Blind and Consultative
• Conferencing: Local three-way conferencing, conferencing transfer, Server assisted conferencing.
• Static NAT support and STUN based NAT discovery.
• Phone Features: Languages localization support (Unicode UTF-8 Characters support), Configurable ring tones, Speed Dial keys
• Security: TLS, SRTP, HTTPS, Password protected UIs, Digest Authentication, Encrypted Configuration Files
• Inter-operability testing with industry leading SIP servers and end points of different vendors.

Expertise in Asterisk Consulting and Implementation ServicesQ3 provides the vital tools, expertise, and resources needed to integrate and implement customized Asterisk Telephony solutions. Our focus is on Asterisk customization and integration. The services we provide include:

• Planning, Development and Architecture
• Web-based Asterisk Predictive Dialers
• Call Center Asterisk Solution (ACD)
• Medium to Large Office Asterisk VoIP Solution
• Asterisk PBX Solution
• Custom Software Integration
• Database Integration
• CRM Integration