China road emergency telephone suppliers

Stay Safe in Hazardous Environments with Explosion Proof Phones

2023-02-23

Explosion proof phones are an essential communication tool in hazardous environments where safety is a top priority. These phones are...

How to Choose the Right Subway Emergency Telephone， Lets come look

2023-02-08

When you're in a hurry and need to get somewhere fast, the subway can be a great way to get...

SIP Visual Emergency Intercom

2022-10-24

SIP Visual Emergency Intercom is specially used for outdoor emergency telephone, pick the machine can automatically call the emergency phone...

The difference between SIP protocol and H.323 protocol in VOIP

2022-10-17

In IP telephone, H.323 and SIP are both used as application layer control protocol for multimedia communication. SIP：Is a text-based...

How to choose the right ex-proof Telephone suppliers for your business

2022-09-17

When choosing a phone provider for your business, it can be difficult to know who to trust. With so many...

ems elevator phone

2022-08-04

Do you need a phone in the elevator? Residential elevators must always have an active phone and check that it...

CXHT Quarterly Work Meeting

2022-07-13

On July 12, 2022, CXHT quarterly meeting was successfully held in the conference room. All Changdian employees participated in the...

SIP Cleanroom Telephone

2022-07-07

The surface of the equipment is flat, the sterile room telephone made with advanced technology, used PE film panel,  no power...

Center Consolette

2022-06-29

Center Consolette was widely used in system design. It is suitable for electric power, metallurgy, chemical industry, petroleum, coal, mining,...