Intercom Reference Design Kit

Internet Protocol Intercom Reference Design: IP INTERCOM
The low-cost Internet Protocol Intercom (IP Intercom) Reference Design is a complete, fully tested, IP intercom design that enables OEMs to build an IP intercom. The IP INTERCOM is based upon the LE IPP*, which has been jointly designed and developed by Texas Instruments (TI) and Adaptive Digital Technologies, Inc. (Adaptive Digital).

The Adaptive Digital Software provided with the IP Intercom is a complete SIP Intercom application, including call control, protocol stack (SIP, UDP/IP, RTP, STUN), G.711, G.729AB, acoustic echo control, tone handling, and AGC).

*LE IPP – Low End IP Phone reference design jointly designed by TI and Adaptive Digital.
IP Intercom

 

The hardware, based around the TI TNETV2502™, includes RAM, Flash Memory, Ethernet Interface, LCD Display, DTMF Keypad and Handset. 

Note: Your design may vary, above image for reference purpose only.

Data Sheet .pdf

The IP INTERCOM Difference: The benefits!

Complete, tested, reference design
Field proven Adaptive Digital Software
Single-processor, DSP-based platform with base software to meet the needs of the IP intercom market
TI DSP technology
Device shipping in volume today

Fast time to market
Turn-key software
Reference design with schematics and bill of materials (BOM)
Broad indemnification coverage by TI
Migration path to future TI low-cost IP Intercom solutions

Software Features - Object code w/ no modification

  1. Single voice channel with G.711 and G.729AB codecs
  2. Push-to talk
  3. RTP packetization with configurable periods of 10, 20, and 30 msec
  4. Hands-free support with Acoustic Echo Control
  5. RFC 2833 DTMF relay support
  6. Configurable 100 millisecond jitter buffer
  7. Tone generation – DTMF or fixed tone for echoing key presses on keypad
  8. Packet loss concealment compliant with G.711 appendix I
  9. Acoustic gain control
  10. Comfort noise generation
  11. Allows for any configurable sequence of tones to be generated towards the phone or network or both
  12. Voice Activity Detection
  13. Support for a single Ethernet interface, 3x4 keypad, hook-switch and other control switches, LEDs, and a 2x24 or similar LCD
  14. Call control & management
  15. Supports RFC 3261 and 3550 SIP signaling and RTP media stream protocols
  16. Supports SIP authentication, invite, ring, ack, ok, bye and termination messages 
  17. Supports configurable unique SIP username and password (credentials) in non-volatile memory
  18. Supports MD5 digest authentication
  19. Supports SIP user agent interoperability with proxy servers
  20. Supports configurable digit map for dialing support
  21. Networking
  22. Supports DHCP and DNS clients, IPv4/UDP
  23. Supports STUN for NAT traversal

HARDWARE

Based on TI’s TMS320C55x DSP technology, the 300MHz TNETV2502 delivers high performance at a low price. With a wide variety of peripherals, the TNETV2502 is able to seamlessly interface with other system devices, reducing BOM costs.

Key Features of the TNETV2502 include:

  1. TMS320C55x™ DSP core
  2. Three McBSPs
  3. Four timers: two 64-bit general purpose timers, one watchdog, one 64-bit DSP/BIOS™ counter
  4. Eight general-purpose IOs
  5. 16-KB I-cache
  6. 64-KB RAM
  7. Glueless external memory
  8. interface to SRAM and SDRAM

IP INTERCOM - customization by Adaptive Digital engineering team available.

Possible future enhancements: 2 Ethernet Ports, Wideband Speech, SIP Enhancements, Encryption, WIFI, and Video.

Adaptive Digital / TI supply:

Reference design schematics and bill of materials

Software as a mixture of source and object code

TNETV2502 devices with indemnification

Other components such as ‘AIC26 codec, voltage regulators, analog components, and logic, as detailed in the reference design

 

 

 

Adaptive Digital Technologies, Inc.
PRODUCTS