Digital Signal Processors (DSP) are used for building low-budget end-user devices for voice telephony, analog and digital modems, and short-distance wireless hardware. PhoenixBird offers the design and development of firmware modules for DSP equipment provided by vendors such as Texas Instruments, Motorola, 3DSP, etc. or proprietary.

VOICE PROCESSING

Representing a full set of DSP-based firmware modules required for voice processing products such as answering machines, speaker phones, IP-telephones (soft-phones), etc. Includes:

- Vocoders (723.1, 711, 728, 729A/B and custom)
- Adaptive Acoustic Echo Canceller
- Voice Activity Detection

ANALOG & DIGITAL MODEM CLIENTS & DATA PROTOCOLS

Modules required for implementation of analog modem (for work with traditional telephone lines) or DSL modem. Include:

- "ADSL G.Lite (G.992.2) & AAL2 PVC
- V.90, V.34, V.32bis/V32, V.22bis/V.22
- V.42bis, V.42, MNP 2, 3, 4

VOICE & VIDEO OVER IP PROTOCOL

A set of modules required for implementing IP-telephony on end-user devices such as IP telephones (soft-phones) and PSTN-to-VoIP cards. We include traditional, widely deployed VoIP protocols: (H.323 for video and audio, MGCP and SGCP) as well as IP-telephony technology edge protocols (SIP and RTP).

INTERNET PROTOCOLS

A set of low and high level Internet protocol stacks. Include all most popular Internet protocols for networking, services and security:

- TCP, UDP, IP, ICMP, ARP, PPP
- DHCP, NAT, RIP
- SMTP, DNS, POP3, IMAP

FAX PROTOCOLS

These protocols provide faxing interoperability over traditional telephone lines or IP networks and can be utilized as a part of an analog modem or IP telephone. Including:

- V.17, V.29, V.27 ter, V21
- T.30

TELEPHONY

A set of modules required for implementation of end-user telephony devices such as answering machines, dialers, caller ID detectors, etc. Include:

- DTMF Detector & Generator
- Dial Pulse Generator
- Adaptive Line Echo Canceller
- Calling Identity Delivery
- Call Waiting
- Calling Identity Delivery on Call Waiting
- Distinctive Ringing/Distinctive Call Waiting
- Three-way Calling
- Call Forwarding

PhoenixBird offers design and development of end-user products, based on DSP technology, for regular telephony, IP-telephony and Internet related tasks:

- Answering machines
- Speakerphones
- Caller ID
- Analog modems
- DSL modems
- Fax machines
- Fax to IP gateways
- IP telephones (softphones)
- PSTN-to-VoIP PC cards
- Home IP routers and HUBs