VOIP-ZY004

1. Features
1.1 Base Function

DHCP assign the parameters automatically, such as IP address;

Support PPPOE protocol (used for ADSL and cable modem)

Upgrade the program by HTTP, FTP or TFTP;

Dynamic voice detection; comfort noise generation; voice buffering;

Hold Function;

Mute Function;

DND(Do not disturb), black list, restricted calls, hotline function;

Voice-mail;

Set through standard Web Browser(such as IE);

Hierarchical management of user password and supervisor password;

Hand-free function

1.2 Tablet Function

Support VoIP, GSM and 3G network calls;

Incoming and outgoing calls display;

Mute;

Mobile AP;

Wireless router;

Gravity sensing;

GPS（GPS+A-GPS）

Support WIFI(Wi-Fi 802.11b/g/n), EDGE, HSDPA, HSUPA;

Support multi-language;

Phonebook and call log;

Support internet access.

2. Standards and Protocols

IEEE802.3/802.3u10 Base T/100Base;

PPPoE: PPP Protocol over Ethernet;

DHCP Client and Server: dynamic host configuration protocol;

Support speech coding algorithmofG.711a/u, G.729,G.723.1 5.3/6.3;

SIP RFC3261, RFC2543;

TCP/IP: Internet transfer and control protocol;

RTP: Real-time Transport Protocol;

RTCP: Real-time Control Protocol;

VAD/CNG: able to save the bandwidth;

TFTP: Trivial File Transfer Protocol.

3. Hardware Parameters of Tablet

Adopt the dual-core hardware platform of MediaTek MT6577-1GHZ;

DDR:4GBit;

Nand Flash:32GBit

Based on the android 4.0 operating system, which could provide 1GHzhigh
frequency and 3G(WCDMA/GSM) quad band;

7.0-inch super large HD screen【capacitive screen】1024×600;

Gravity sensor;

5-megapixels rear camera with autofocus function; 0.3 -megapixelsfront camera;

10mm body;

3100mA lithium ion battery;

3.5mm headphone jack;

mini usb 5pin charging interface;

HDMI data interface

4. Software Overview
Network Protocol Tone 
SIP v2(RFC3261)
IP/TCP/UDP/RTP/RTCP 
IP/ICMP/ARP/RARP/SNTP
TFTP Client/DHCP Client/PPPOE
Client 
Telnet/HTTP Server
DNS Clients 
Ring Tone
Ring Back Tone
Dial Tone 
Busy Tone
Phone Function 
Volume Adjustment. 
Speed dial key
Codec 
G.711： 64K bit/s(PCM)
G.723.1： 63k/5.3k bit/s 
G.726： 16k/24k/32k/40k
bit/s(ADPCM) 
G.729A： 8k bit/s(CS-ACELP)
G.729B： adds VAD & CNG to
G.729
IP Assignment 
IP (Static IP) 
DHCP 
PPPoE
Voice Quality Security 
VAD: dynamic voice detection; 
AGC: Automatic Gain Control; 
AEC: Automatic Echo Cancellation;
SRTP: Secure Real-time Transport
Protocol; 
HTTP 1.1 basic/digest
authentication for Web setup 
MD5 for SIP authentication
(RFC2069/RFC2617)