5 Best
Voice Modems
-
-
Product Highlights
- Universal to use: this board needs to cooperate pi3, orange pie, a variety of school development board to use.
- Superior performance: the mmdvm is intended to be an open source multi mode digital voice modem, which utilities the power of an arm processor and a simple analogue interface board.
- Compatible with: this board has been applied in the gm300 gm3188 3688 950i 338 vitex dr-1x, other types of repeaters and car stations need to be studied yourself.
- Practical to use: the multi mode digital voice modem is a combined hardware and software development of a modem to handle all amateur digital voice modes. initially it will support d star and dmr, with system and p.25 coming later, as well as a built in fm repeater
- Convenient to use: the mmdvm is aimed at the due, teensy 3.1/3.2 and mbed platforms, the only requirement for the hardware is to be arm cortex m3, m4, or m7 based, and access to interrupts and adc and adc ports as well as digital signalling ports.
SHOWview product -
Product Highlights
- Modem features gsm/gprs functions supported: siemensdata/fax transmission/reception sms transmission/reception voice calls gsm quad band (850/900/1800/1900 mhz) gprs class 10 suitable for any kind of automation, m2m, remote control, telemetry, environmental monitoring, security, automotive applications
SHOWview product -
Product Highlights
- Pots service functions call protocol: sip(ims compatible), seamless compatible with all popular call agent. integrate heartbeat function and support active/standby call agent. voice coding: itu-t g.711/g.723.1(5.3k/6.3kbit/s)/g.729, auto-negotiate with call agent.echo cancellation exceeding itu-t g.165/g.168-2002, up to 128ms tail length. support high/low speed fax, byp...
- Wifi service functionsintegrated 802.11b/g/n, 300mbps, 2t2r.support 128 connections.support wep and wpa/wpa2 security protocols.
- Full speed non-blocking switching.2k mac address table.64 full range vlan id support qinq vlan, 1:1 vlan, vlan reusing, vlan trunk, etc.integrated port monitoring, port mirroring, port rate limiting, port sla, etc. support auto polarity detection of ethernet ports (auto mdix). integrated ieee802.1p qos with four level priority queues.support ipv4 igmp snooping and ipv6 ...
- Multi-party conferencing.line testing according to gr-909.ip address assignment: dynamic pppoe/dhcp client and static ip. support web, cli,ivr,tr069.call loss less than 0.01%.
SHOWview product -
Product Highlights
- 2. usb powered.
- 4. certified compatible with windows 98, 98se, me, 2000, xp, vista, windows 7 / 8 / 10 include 32 bits and 64 bits.
- 1. connects your laptop or desktop computer to the internet using a dial up internet service.
- 3. 56k v9.2/v9.0
- 5. color: black size: 7.5"
SHOWview product
Coupon copied
