pstn system

Dual Network GSM PSTN Alarm System with touch keypad and wireless doorbell Model:CX-PGSM4 GSM PSTN Alarm System Detailed Product Description PSTN GSM ...

GSM/PSTN Dual Network Home Alarm System Function Instruction: 1. Dual-network (GSM&PSTN) alarm function, alarm information more safe; Intelligent ...

MGCP VOIP PSTN Gateway 1FXS+1FXO / VOIP Gateway Service PSTN Phone System Hook Flash Relay Description: OFS- CG4 Analog Telephone Adapters (ATA) serie...

ZTE ONUC-POWER(T) Power board for ZTE ZXJ10 PSTN Contact Us Central module (CM): located at the central position in networking, and connected with per...

Model:JS-PGCX4 GSM/PSTN Dual network wireless home alarms Features 1.Touch keypad; LCD displays Date, Day of the week, Time, and current Armed Status ...

PSTN VOIP PBX Server Abundant Voice Service , Asterisk Voip Gateway Trunking Gateway Overview Guangdong Global Telecommunication Technology GT-SS3500 ...

Tuya WIFI+GSM+PSTN Alarm System(WL-JT-99CST) Product model:SD0198 Protocol:Wi-Fi Sales Area:North America,South America,Europe,Southeast Asia,Middle E...

Anti-Vandal PSTN/SIP/3G Telephone Robust Handset for Outdoor / Indoor Emergency Housed in robust cold rolled steel box and manufactured to a high stan...

Vandal Resistant Indoor Analog PSTN Phone for Inmate Visitors Hotline Telephone 1. This Industriale Hotline Telefon make up of handset, cradle, digita...

SUMMIT EN81-70/28 Mounted behind the elevator inside the hidden Telecontrol TL1-COP PSTN elevator lift emergency telephone Description: The elevator&a...

UL20671 PSTN Phone Connect Curly Cable Conductor: High purity tin-plate copper wire strands. Insulation: Quality materials complying with AWM standard...

Home Black Color Fixed Big Button Phone Elderly Corded Telephones Description of Home Black Color Fixed Phones: Product item: Customized Telephone Pro...

SinoV-GSM400E PCI-E asterisk card Products: SinoV-GSM400E is a four-way wireless voice cards, slot type is PCI-E socket, line PCI-E 2.2 standards. It ...

Meter reading optical reader optical probe IEC ANSI standard magnetical holding reading and writing With smart metering, it is primarily meant to read...

Accessories Analog Telephone to F/O Converter: 1-Ch Telephone lines (FXO & FXS) Accessories Advantages: standard RJ11 telephone interface 1 channe...