TelephoneTribute.com – Private Branch Exchange

A private phone system (switch) used by medium and large companies which is connected to the public telephone network (local telco) and performs a variety of in-house routing and switching. ¬†User usually dial “9” to get outside system to the local lines.


Source: telephonetribute.com.
Image: Unsplash.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s