Your Phone Extension

Understand the business line assigned to you, where your calls ring, and which settings affect the people you call.

In the CRM: Settings → My Profile → Extension

Phone extension or Chrome extension?

Your phone extension is your internal business phone number, such as 101. It identifies the line assigned to you. The Chrome extension is an add-on for your browser that can ask this phone line to place calls. They are different things.

Your public business number is the number customers call or text. Caller ID is the number shown when you call someone. The account owner assigns these services and their permissions.

Create your first extension

Your business number is the number customers call. An extension, such as 101, is the internal phone line used by a person in your team. Set up your first line after buying your number, so it has the right caller ID and incoming-call destination.

Create Extension form with extension number, caller ID and incoming-call switch — Create an extension and choose its business number. These are example details; use your own purchased number. Select the image to enlarge it.

Open Settings → My Profile → Extension. If your account already has an extension, check its assignment here instead of creating another one.
In Add Extension, enter a unique internal number, such as 101. Enter the person or business name in CallerID Name.
Choose the business number you just bought in Caller ID Number. If it is missing, return to My Numbers and check that the number is available to your account.
Turn on Use as Incoming Number when calls to that business number should ring this extension.
Select Create Extension and confirm the request. Wait for the new extension to appear.
Sign in to the Mango9 Windows or iPhone app with your Mango9 account. Check that calls are registered, then test an outgoing and incoming call.

Set up the device you will answer on

Install Mango9 for Windows or iPhone using the official download page.
Sign in with your Mango9 account or the offered email-code option. The app automatically retrieves your assigned phone settings.
Confirm that the correct line is connected before testing calls. If you use a desk phone, have your account owner or phone administrator configure it for your assigned extension.
For Chrome click-to-call, sign in directly in the Mango9 browser extension after your phone or app is ready. Answer the callback on that registered device.

Settings you may see

Save changes where the page offers Save. Desktop device and ringtone preferences are changed in the Windows app, while account and line assignments are managed in the CRM.

Settings you may see
Setting	Plain-language explanation
Extension number	Your internal number. Ask the account owner to change an assignment; do not reuse another employee’s line.
Display name	The name used to identify you inside the phone system.
Caller ID number and name	The authorized business identity used for outgoing calls. What the recipient sees can also depend on their carrier and address book.
Voicemail	Controls for messages left when you cannot answer, including the mailbox and PIN where offered.
Call recording	Whether eligible calls are recorded. Follow your organization’s recording policy and any notice it requires.
Music on hold	What callers hear while they are waiting on hold.
Missed-call notifications	Available alert preferences for calls you did not answer.

Keep setup details private

Some accounts show legacy QR codes or manual phone credentials. Use those only with the device and instructions supplied by your phone administrator. They are not the normal email-and-password sign-in for the current Mango9 apps.

Do not post setup QR codes, phone passwords or login codes in screenshots. If you see the wrong employee’s line, correct the account assignment rather than changing server addresses at random.