Join a Conference Hosted by a Conference Bridge
Learn the different ways that you can call into a conference meeting through a conference bridge.
Written by Val Campos
Updated at August 14th, 2025
Table of Contents
As a Stratus user, there are several different ways you can join an active conference that had been created through a conference bridge. This can be done by…
- Calling the extension number of the conference bridge from a SpectrumVoIP device.
- Calling a dedicated conference number.
- Calling into a conference auto attendant that routes your call to the conference bridge.
From an Internal Phone
To join a conference from a phone in the system, call the extension number associated with the conference bridge.
Note: If a Participant PIN has been set, you will be prompted to enter it before being able to join the conference.
From an Outside Source
To join a conference from an outside source, such as a cell phone or phone that is not on the account, you will need a number to call into.
This number can be a dedicated conference number.
Another option is to call a phone number on the account and have the call transferred to the desired conference's auto attendant or extension number, just like transferring to another user.
Dedicated Conference Number
A dedicated Conference Number allows outside sources to call in directly to a selected conference. As an Office Manager in Stratus, you can route a phone number directly to a conference bridge using the Inventory page of your portal.
To route a phone number to a conference bridge to allow callers to easily join conference calls…
1. Navigate to the Inventory page.
2. Click the phone number that you would like to designate for your conference.
3. Use the Treatment drop-down to select Conference.
4. In the Conference box, type and select the name of the conference bridge.
5. Click the Save button. 
✔ You should now see that phone number routing to the conference bridge in your Phone Number Inventory.
Conference Auto Attendant
If you have multiple conference bridges configured, it may be difficult for your internal and external users to join conference calls. One way of allowing callers to join conferences hosted by conference bridges is to use a conference auto attendant.
A conference auto attendant is a type of auto attendant that is configured to have callers either dial into or select the conference bridge they want to route their call to. Using a conference auto attendant can make it much easier for external users to dial into and join a specific conference bridge.
Quick Tip: Using a conference auto attendant can also help you avoid having to route multiple phone numbers to different conference bridges.
Instead, you can route one phone number to the conference auto attendant where callers can be routed to different conference bridges depending on their input.
Set Up a Conference Auto Attendant
Step 1: Add a Conference Auto Attendant
A conference auto attendant will allow callers to enter in the extension number of a conference bridge to join an active conference. This is a good option if an account has many conference bridges for users to join.
To create a conference auto attendant to use to route calls to different conference bridges…
1. Navigate to the Auto Attendants page. 
2. Click the Add Attendant button. 
3. In the Add an Auto Attendant modal, fill in the following information:
• Name - Type a unique name to identify the auto attendant with.
• Extension - Type in an ion number that is not yet in use.
• Time Frame - Use the dropdown to select default (all the time).
4. When you are done, click the Add button. 
Step 2: Configure the Conference Auto Attendant
Now that a conference auto attendant has been added, you can configure it to read off a message and route callers as needed. You can set an auto attendant to allow people to join a conference bridge by having them dial the extension number of the conference bridge or press an option on their dial pad.
To prepare a conference auto attendant for routing callers…
1. Ensure that the Menu Prompt tells callers to how they can reach a conference call by doing one of the following:
• Use a general statement that prompts callers to dial the extension number they know to call into a conference that they wish to join.
• List out the numbers on the dial pad that the caller can press for a specific conference call.
• List out the extension numbers the caller can dial to reach a conference call.
Quick Tip: If there are a lot of options for callers to choose from, it is recommended to add “To hear these options again, press [NUMBER or STAR]” to your menu prompt so that callers know they can press a dial pad menu options to play the greeting again.
2. If you listed options that the caller can press, use the Dial Pad Menu section to add conference bridges to the numbers. 
3. If you are adding an option for callers to press to hear the greeting again, click a number option and select Repeat Prompt.
4. Click the Options 
button to further configure the conference auto attendant.
5. Ensure that Enable Dial by Extension is selected to allow callers to dial the conference bridge's extension number.
6. Configure the If no key is pressed and If unassigned key is pressed options if callers should be routed to a specific conference bridge if they don't press a key or they press the wrong key, 
7. Click the Done button. 
8. Click the Save button. 
✔ Now you will have a conference auto attendant that allows callers to dial the extension numbers of conference bridges to join their meetings.
Contact a Conference Auto Attendant
Using the conference auto attendant, users can enter the extension number of the conference bridge they need to join. This can be especially useful if your organization uses multiple conference bridges.
As an Internal User
As an alternative to calling a conference bridge directly, users can opt to call the conference auto attendant instead.
Any user on your account can get in direct contact with the conference auto attendant by either…
– Calling the extension number of the conference auto attendant.
– Have their call transferred to the conference auto attendant's extension number.
As an External Caller
Users calling from a cellphone and people outside of your organization can join a conference using the conference attendant by either…
– Calling a dedicated phone number for the conference auto attendant.
Route a Phone Number to the Conference Auto Attendant
In order for people outside of your organization to be able to use the conference auto attendant to reach a conference bridge, a phone number can be routed to your conference auto attendant.
1. Navigate to the Inventory page.
2. Click the phone number that you would like to designate for your conference.
3. Use the Treatment drop-down to select Auto Attendant.
4. In the Auto Attendant box, type and select the name of the conference auto attendant. 
5. Click the Save button.
✔ You should now see that phone number routing to the conference auto attendant in your Phone Number Inventory.
– Calling a user in the organization and having their call transferred to the extension number of the conference auto attendant.