Voip Gateway

Proolin voip iad / pl-311 voice gateway is an internet based one port voice gateway. Pl-311 adapts multi voice control protocols and voice compression codec to directly convert analog voice into ip packet for internet transport

Pl-311 one port voice gateway supports sip protocols, offers two 10/100mbps ethernet interface , one rj11 telephone interface and one fxo port. Therefore, the original analog telephone can dial ip phone , it is compatible with various ippbx and voip voice gateway to provide broadband ip voice service

. 2 FXS phone ada[pter , Support SIP protocol
2. One RJ-45 port for 10Base-T Ethernet connection
3. Supports Dynamic Host Configuration Protocol (DHCP)
4. Call Waiting,Transfer,Call Forwarding: No Answer / Busy / All

5. Call Return,Call Back on Busy,Call Blocking with Toll Restriction
6. Supports G.711, G.726, G.729, and G.723.1 codec
7. Supports DTMF tone detection and generation
8. Web-based configuration through a built-in web server

Broadband router with 2 phone ports
Feature-rich telephone service and internet connection with multiple computers
Built-in switch connects three local pcs directly -- daisy-chain out to more hubs and switches as your network grows


Voip phone adapter: two voice ports (rj-11) for analog phones or fax machines with two independent telephone numbers
Router : 4 ethernet connection(1wan+3lan)
Supports dynamic host configuration protocol (dhcp)
Supports session initiation protocol (sip)

1. 2.4G ISM Band (2400~2483MHz), Support Skype
2. Commercial grade high quality speakerphone with digital echo cancellation
3. Large graphic LCD with blue color backlight
4. Multi-language caller ID display feature
5. Review Skype contacts and call list on handset LCD


6. Both base and handset ring for all incoming calls.
7. Auto-select RF channel to improve the quality of voice
8. Radio range: 15 meters(48feet) OR 50 meters(160feet)
9. Standby time: over 100 hours;Talk time: over 10 hours
10. Driver and soud card built-in, no driver and sound card required

1.General description
Gsm fwt-8848 is a gsm to analog converter(single port, insert 1 sim card only), the device can produce a fxs line to allow a regular phone to be connected and used just like a local landline(pstn) except your calls will go out the gsm network. This device can both receive and make calls.

The main application is: connecting the rj-11 fxs line to connect ordinary telephone set for voice call; to connect pbx for call extensions; to connect billing systems for public phone use; to connect voip fxo gateway to realize voip call termination; to connect alarm system for security purpose, etc. It is not a voip gateway, nor a gsm+voip gateway, it is a gsm fixed wireless terminal that produces an analog fxs phone line .

2.Features:
1)frequency:gsm 900/1800mhz or gsm 850/900/1800/1900mhz
2) it is a 1 channel gsm gateway which has 2 rj-11 outputs for extensions;
3) it can connect with ordinary telephone set, pbx , voip gateway, billing meter etc. ;
4) dialing tone frequency:450hz;
5) employ industrial module to make;
6) can adjust dial interval from 0.5sec to 9 secs by setting up from telephone set;                                         
7) can adjust voice volume by setting up from telephone set;                              
8) sim card supported (1.8v, 3v);
9) caller id display;
10) dtmf dialing;
11) bell signal;
12) polarity reversal;
13) the rj-11 socket which connect the phone or billing system for metering purpose;
14) antenna socket (sma); 
15) ip presetting;
16) working status and signal strength by led indicator;                                                 
17) imei change (optional).
18) back up li-ion battery( optional) 7.2v 1300mah.Standby 24hrs, talking time: 2.5hrs.