Cloud Phone Systems
Extension Dialing Between Offices, Homes and Mobiles
Extension dialing lets everyone in your company call each other with a short – usually four-digit – extension, whether they sit in the same office, another location, at home or on the mobile app.
One phone system, one numbering plan
With a hosted phone system, every phone is part of the same system no matter where it is plugged in. Colleagues call each other by extension, transfer customers by extension and forward calls by extension – between floors, between your Birmingham and Huntsville offices, or to someone working from home. Calls between extensions are free and don't use an outside line.
What each extension can do
Behind each extension is a set of rules for how its calls are handled: ring this phone, then that one, go to voicemail after 20 seconds, send calls somewhere else after hours. We set up those rules with you when we build the system – a typical small business gets something simple, while a call center or a team of remote workers gets a different pattern. Users can adjust their own forwarding and voicemail in the web portal.
- Call and transfer within the office or between offices by extension.
- Forward an extension to another extension, a ring group or a cell phone.
- Time rules for business hours, lunch, after hours and holidays.
- A dial-by-name directory (Professional plan) for callers who don't know the extension.
Planning the numbers
A good numbering plan makes life easier later: for example 1xx for the front office, 2xx for sales, 3xx for service, or a block per location. We plan it with you before the phones go in.
Extension Dialing
Extension features
Four-digit dialing
Call any colleague by extension, wherever they are.
Transfers & forwarding
Move calls between people and offices.
Time rules
Different handling during and after business hours.
Dial-by-name directory
Callers spell a name to reach someone (Professional).
“My company has worked with Vulcan Telecom for years. Keith and Joseph and everyone at Vulcan have always been prompt to respond to all of our questions and crazy situations.”
“I’ve used Vulcan Telecom for a large medical office telecom project. Large or small they are down to earth and easy to talk to. Keep everything in real terms. I’ve moved 300 miles away but Ive still consulted with Vulcan about issues I couldn’t get resolved by local vendors. Great service”
“Stared using Vulcan telecommunication. I was tired of the big box names making false promises. Vulcan has been so easy to deal with always love Working with a business that enjoys working with other businesses. I would highly recommend contacting them for all your telecommunication needs.”
“Superb customer service! Keith returns phone calls promptly and answered all of my questions about converting to the new system. I was very pleased with the pricing and the ease of transition!”
“From the moment I reached out, their customer service was top-notch—friendly, knowledgeable, and genuinely helpful. The service exceeded my expectations and is highly recommendable. If anyone is looking for quality, reliability, and great customer care, they truly go above and beyond!”
“We have used Vulcan for years for our dermatology practice. They are excellent. Always respond asap . Very easy to work with and great customer service !!”
FAQ
Extension Dialing questions
Do calls between offices cost extra?
No. Calls between extensions stay on the phone system, wherever the phones are.
Can a remote worker have an extension?
Yes – on a desk phone at home or on the mobile app.
Can we keep our current extension numbers?
Usually yes. We plan the numbering with you and keep what your team is used to where possible.
Free quote
Planning a project? Let’s talk it through.
Tell us briefly what you need – new cabling, a phone system or IT help. We’ll get back to you, or just call – a real person answers.
- Call us(205) 699-8090
Partner Poly
Certified Microsoft
365 Ubiquiti
Networks
Request a free quote
We reply on business days. Fields marked * are required.