K161A-E
DONJIN Keygoe200 analog interface processing board K161A-E adopts PCIe computer bus structure, composed of a mother board and modules. It has 16 analog telephone interfaces, providing the modules such as trunk lines, user lines, trunk/user lines, high-impedance recording, E/M control, 2-pin voice, 4-pin voice, and so on; you can select various module combinations for various functions. Using DONJIN Keygoe SDK, K161A-E can be used for voice playing/recording, conferencing, faxing, VoIP, FSK data receiving/sending, text to speech (TTS), and many other functions. Besides, using the echo suppression processing circuits, K161A-E has quite excellent voice quality.
l Use advanced Keygoe multimedia processing technology, and inherit the openness and flexibility of the Keygoe series products;
l Be compatible with Keygoe EasyAPI, and convinient for the system integrator to expand services to small and medium applciations at a low cost;
l One board could perform the multimedia processing functions such as the voice, conference, fax, and VoIP, not requiring to configure any resource board;
l Use echo suppression processing at the interface, and provide the posibility to improve the IP application performance;
l The small size is suitable for space-limited server, PC, or IPC;
l Designed for the applications with 32 channels or less, which is more cost-efficient.
Voice interface
l Each module has 2 channels (2 calls), and each channel can perform the following functions based on the module type:
2 Trunk module: on/off hook, calling in/out, voice recording/playing, receiving/sending DTMF, analog tone detection, and polarity inversion signal detection;
2 User module: extension on/off-hook detection, feeding and ringing power, voice recording/playing, receiving/sending DTMF, and sending caller number to an extension phone;
2 Trunk/User module: provide 1 trunk channel and 1 user channel to perform all the functions of trunk lines and user lines, also provide direct power connection during power failure;
2 Recording module: voltage control, voice control, recording and special channel monitoring;
2 Others: E/M control module, 2-pin voice module, and 4-pin voice module, providing corresponding functions; for details, see the description in "Component";
l Support the continuous speech processing (CSP), voice interrupt, and the real-time voice playing/recording of memory and file server;
l Caller identity detection (CID): Support two CID modes of DTMF and FSK;
l Support the DTMF, FSK, and customized envelope tone generation and detection;
l Support to adjust the DTMF receiving/sending sensitivity; adapt to different lines or terminals;
l Support the automatic gain control (AGC/ALS), voice activity detection (VAD) and comfort noise generation (CNG);
l Support the mix voice playing/recording and voice recording/playing in a full duplex mode;
l Support the conversion between the A law and μ law;
l Support the DPD and PVD.
Fax
l Support to receive/send the .tiff files;
l The supported maximum fax receiving/sending speed rate is up to 14400 bps, and the automatic down-speeding is supported to adapt to various communication environments;
l Support the fax receiving/sending in an ECM mode; during the handshake, the ECM/NON-ECM mode is selected by self-adaptation;
l Support to receive/send a single or multiple fax pages, and the sent/received page count is not limited;
l Support to send multiple files once;
l Support to add customized page headers by function invoking.
IP
l Support the H.323 protocol group, and could connect to the IP telephone gateway, gatekeeper, and soft switch which also support the H.323;
l Support the SIP, and could connect to the function servers that also support the SIP;
l Support encoding/decoding standards, including G.711, G.723.1, G.729A, and so on;
l Support the voice active detection (VAD) and silence compression.
Conference
l Detect the DTMF tones generated by any conference member, and shield the tones to other members;
l The automatic gain control (AGC) ensures each conference member has the same volume;
l Personal volume control ensures each member can adjust the volume to a satisfied level.
l Analog interface number on one board: 16;
l Maximum board nubmer in one computer: 2;
l Maximum voice resources in one computer: 128 channels;
l Maximum fax resources in one computer: 16 channels;
l Maximum VoIP resources in one computer: 64 channels;
l Maximum conference resources in one computer: 64;
l Computer bus: PCIe;
l Size: 221 mm * 111 mm;
l Operating system: Microsoft Windows XP/2003/2008;
Red Hat Enterprise Linux 5/6, CentOS 5, Debian 6, Ubuntu 11 Server.
1. Voice resources
l Interface: loop trunk/user trunk/hi-impedance/others;
l Interface impedance: 3-element composed impedance (loop trunk/user trunk), more than 20 k (hi-impedance recording module);
l Sampling rate: 8 k;
l DTMF receiving/sending codes: 0–9, *, #, A, B, C, D;
l FSK modulation: phase continuous binary FSK:
1: 1200Hz±1%
0: 2200Hz±1%
l Voice encoding format: G.711 (support A law/μ law PCM, AMI-ADPCM), G729, G723.1, and so on;
l Voice file format: WAVE, PCM, ADPCM, VOX, and so on.
2. Fax resource
l Support the T.30;
l Support to receive/send the fax confirming to the V17/V29/V27 standards at a rate of 14400/9600/7200/4800/2400 bps;
l Support to receive/send the fax in an ECM mode; during the handshake, the ECM/NON-ECM mode can be selected by self-adaptation;
l Support to receive/send the .tiff file in the MH, MR, and MMR formats.
3. VoIP
(1) RTP
l RTP/RTCP (RFC3551/3552);
l Voice packet sampling length/frame number can be configured (10–60 ms);
l RTP dynamic DTMF load (RFC2833/4733);
l Jitter buffer: Support the static jitter mode and dynamic self-adaptation mode simultaneously;
l Analyze the network environment and make the statistics of packet loss;
l NAT/firewall detection and traversal.
(2) H.323
l ITU-T H.323v2 (H.225v2/H.245v3);
l Call parameters such as the Fast Start, and H.245 Tunneling;
l Call forwarding;
l Gatekeeper auto discovery and login (Support the number registration types of H.323 UID and E164);
l H.245 user input character and DTMF signal message (User Input Indication);
l Terminal registration management.
(3) SIP
l IETF SIPv2 standard (RFC3261);
l UDP/TCP call mode;
l MD5(digest) authentication;
l REFER call forwarding (RFC3515);
l SIP (RFC3265 SUBSCRIBE/NOTIFY);
l Proxy server registration, security authentification, and regular refreshing;
l SIP INFO message(RFC2976);
l Registrar; support the authentication of the service part;
l NAT/firewall detection and traversal.
l Call center of small to medium sized enterprise (including IP call center);
l Telephone exchange of small to medium sized enterprise (including IP PBX);
l Industry IVR;
l Telephone conference system in enterprise level;
l Network fax system in enterprise level;
l Enterprise telephone recording system;
l Dispatching and emergency commanding system;
l …
DONJIN Keygoe200 analog interface multimedia processign board is applied in the small-sized IP call center.
Solution features:
l Use two K161A-E, and support a maximum of 32 analog interfaces; the trunk lines and user lines can be combined in various types;
l The functions of recording, faxing, IP agent, and conferencing can be performed without configuring any media resource board;
l Adopt special echo surpression circuits for exellent call quality;
l One computer could provide a maximum of 64 IP agents;
l One computer could provide a maximum of 16 fax resources;
l The cost-efficient feature meets the requirment of growth-type enterprise.
Name | Type | Image | Function | |
Software | Fax resource software | SXFAX-K2 | It provides 4 fax resources; support the T.30. | |
VoIP resource software | SXVOIP-K2 | It provides 4 VoIP resources; support the SIP and H.323. | ||
Module | 2-pin trunk module | K2T | It is used with K161A-E together to access the loop trunk interface, which can process 2 analog trunk channels simultaneously. | |
2-pin user module | K2U | It is used with K161A-E together to access the user trunk interface, which can process 2 user trunk channels simultaneously. Power-36 need be used to provide feeding and ringing power. | ||
2-pin recording module | K2R | It is used with K161A-E together for voice recording, which can process two recording channels simultaneously. It supports the voltage detection and adjustment. | ||
Trunk/User module | MTU | It is used with K161A-E together to access the loop trunk interface and user trunk interface, which can process one loop trunk channel and one user trunk channel simultaneously. Power-36 need be used to provide feeding and ringing power. | ||
EM control module | MEM | It is used with K161A-E together to process the E and M signals of two 4-pin E/M trunks or 2-pin E/M trunks. | ||
2-pin E/M voice module | M2VOC | It is used with K161A-E together to process two-channel 2-pin E/M trunk voice. | ||
4-pin E/M voice module | M4VOC | It is used with K161A-E together to process one-channel 4-pin E/M trunk voice. | ||
Power | Power supply | Power-36 | The 3-pin feeding and ringing power supply cooperates with K161A-E to provide the feeding and ringing power for the modules K2U and MTU. The DC feeding voltage is -36 V, while AC ringing voltage is 75 V. | |
Cable | Cable converter | C14 | It is used with K161A-E together to convert one RJ45 interface (defined by DONJIN) to 4 RJ11 (2-pin) interfaces. | |
10-pin bus for board connection | CD-H2×5 | When multiple boards are used together, this cable must be used for clock synchronization. |