D2 Technologies
 
Reference Designs
Fixed Access
Mobile and Personal Communications

 D2 is working with a number of SoC partners to develop integrated software solutions for end-point telecom products such as Terminal Adaptors, IP phones, WiFi handsets, VoIP residential gateways, base stations and access points. These partnerships lead to reference designs that include the hardware as well as integrated software for a working application. These reference designs serve as a basis for final end product design and development. Contact D2 Sales for more information and a complete list of vPort reference designs.

Example reference designs and sample application diagrams:

Analog Telephony Adaptor Reference Platforms

  • SIP ATA
  • Skype ATA
SOC: NUVOTON and RALINK



  • DECT ATA
SOC: TI TNETV



Broadband VoIP Gateway Reference Platforms

  • 10/100Base-T Ethernet/Gigabit Ethernet
  • Fiber Interface WAN
SOC: CAVIUM





SOC: FREESCALE




SOC: MARVEL



Broadband Wireless VoIP Gateway Reference Platforms

  • WiFi 11 a/b/g/n
SOC: ATHEROS, BROADCOM, and RALINK



xDSL+WiFi+VoIP Triple-Play IAD Reference Platforms

    • ADSL/ADSL2+
    • VDSL/VDSL2




Fiber VoIP Gateway Reference Platforms

  • End-to-End GigE 
  • EPON
  • GPON
SOC: Broadcom and Cortina



IPTV Set-top Box Reference Platforms

  • VoIP + Video Conference
SOC: ST-Micro




VoIP + WiFi Co-System Reference Platforms

  • Enable VoIP+WiFi to existing product
SOC: QualcommAtheros, Broadcom, Mediatek and NXP




External DSP Module

  • TI C54x/C55x/C64x
  • TI C55-NEXT

DSP Algorithms:

Telephony Algorithms

Continuity Check Tone Detection

DTMF Detection/Removal

FAX and Modem Tone Detection

Long DTMF Tone Detection

Low Complexity DTMF Detection

Multifrequency (MF) Tone Detection

Tone Generation

Universal Call Progress Tone Detection

Voice Activity Detection and AGC

Echo Cancellers

G.168 Single Reflector Network Echo Canceller

G.168 Network Echo Canceller

Standard Voice Coders

G.722.1 Voice Coder

G.723.1 Voice Coder

G.723.1 + Annex A Voice Coder

G.726 Voice Coder

G.728 Voice Coder

G.729 Voice Coder

G.729A Voice Coder

G.729 + Annex B Voice Coder

G.729A + Annex B Voice Coder

G.729E Voice Coder

GSM/6.10 Voice Coder (ETSI)

GSM/6.10 Voice Coder (Microsoft)

GSM/AMR Voice Coder (ETSI)

GSM/EFR Voice Coder (ETSI)

Data Modems and Fax

Caller Identification Send/Receive

International Caller Identification

Caller Identification with Call Waiting

FAX Modem Data Pumps

Fax Relay (I.366.2/T.30) + Group 3 Modems

Fax Relay (T.38/T.30) + Group 3 Modems

HDLC Transmit/Receive

Telephone Set Solutions

Full Duplex Speaker Phone