Activate Summer | Set-up your call forwarding

Activate Summer | Set-up your call forwarding

Summer won’t start working until your calls are forwarded. Here’s how to set that up.


📞 Forwarding Calls to Summer

Summer is always ready to answer your calls—but when she’s on the clock is totally up to you. You control when Summer is active by turning call forwarding on or off for your business phone number.


Forwarding your calls to your custom Summer number lets her answer calls, respond to customers, and handle things on your behalf—without changing your existing number. The Summer team will never interrupt your current service, and we’ll always notify you by email before you get close to any overage charges.


Read through the guide below to understand how call forwarding works and how to set it up for your specific phone provider.

🔍 What Is Call Forwarding?

Call forwarding is when your phone sends incoming calls to another number automatically—like your Summer number. Once it’s set up, your original business number stays the same, but Summer handles the calls in the background.

🔁 Types of Call Forwarding

Type

Description

Unconditional Forwarding

Forwards all calls to Summer—immediately and automatically.

Conditional Forwarding

Forwards calls only in specific situations:If busy (already on the phone) If no answer (you don't pick up) If unreachable (phone off / no signal)


⚠️ If you want Summer to handle more than one condition (like both busy and no answer), set each one up separately using its own code.

Not all carriers support conditional forwarding.

⚙️ How to Set Up Call Forwarding

Most carriers use special dial codes to set up forwarding. It will look similar to the steps below:

  1. Open your phone’s dialer (like you’re making a call).
  2. Enter the setup code plus your Summer number.

Example: **21*1234567890#

  1. Press Call.
  2. You’ll usually hear a confirmation tone or message.
IMPORTANT: Setup codes vary by carrier.
Scroll down and follow the specific instructions for your carrier to ensure Summer works correctly.

📵 iPhone Users: Turn Off Live Voicemail

If you're using an iPhone, make sure to turn off Live Voicemail. Live Voicemail can prevent Summer from receiving forwarded calls—especially with conditional forwarding.

  1. Settings ➡️ Phone ➡️ Live Voicemail
  2. Toggle Live Voicemail off

Summer works best when your iPhone isn’t screening or answering calls on its own.

🔁 How to Turn Off Call Forwarding

To stop forwarding, either dial a deactivate code or disable it in your provider’s app/settings.

  • Disable all forwarding: Dial your carrier’s cancel code (often ##21# or *73) and press Call.
  • Disable specific conditions (GSM networks like AT&T & T‑Mobile):
    • ##67# – this code disables forwarding when busy
    • ##61# – this code disables forwarding when no answer
    • ##62# – this code disables forwarding when unreachable
Heads Up: Not all carriers support these condition‑specific disable codes.
Verizon and Boost Mobile don’t—use *73 to turn off all forwarding instead.
Google Voice, RingCentral, and other VoIP services' forwarding must be managed in their app or website.

When in doubt, check your carrier’s section below for exact instructions.

Carrier Instructions


Popular Cell Phone Networks

AT&T

Verizon

T-Mobile

Boost Mobile

Mint Mobile

Cricket Wireless

Consumer Cellular

Sprint

Vonage

Xfinity Mobile

US Cellular


Popular VOIP & Web Phone Systems

Open Phone

Ring Central

Google Voice

Grasshopper

DialPad

Vonage Business Communications

Zoom Phone

Freedom Voice


Landline

Landlines (General Instructions)

📱 Popular Cell Phone Networks — Easy Setup Guides

➤ AT&T

Unconditional Forwarding (All Calls):

Dial: **21*[SummerNumber]#

➡️ Example: **21*1234567890#

Press Call. A tone or pop-up confirms it worked.


Conditional Forwarding:

If you want Summer to cover multiple situations, dial each condition code separately.

  • If busy: **67*[SummerNumber]#
  • If no answer: **61*[SummerNumber]#
  • If unreachable: **62*[SummerNumber]#

To Disable Forwarding:

  • Disable all forwarding configuration: ##21#
  • Disable busy forwarding: ##67#
  • Disable no answer forwarding: ##61#
  • Disable unreachable forwarding: ##62#

Notes:

➤ Verizon

Unconditional Forwarding (All Calls):

Dial: *72[SummerNumber]

➡️ Example: *721234567890

Press Call. Wait for the confirmation tone/voice.


Conditional Forwarding:

Set each one up separately:

  • If busy: *90[SummerNumber]
  • If no answer: *92[SummerNumber]

To Disable Forwarding:

  • Disable all forwarding configuration: *73

➤ Verizon does not support disabling individual conditional rules.

Notes:

➤ T-Mobile

Unconditional Forwarding (All Calls):

Dial: **21*[SummerNumber]#

➡️ Example: **21*1234567890#

Press Call and wait for the beep.


Conditional Forwarding:

Set each one up separately:

  • If busy: **67*[SummerNumber]#
  • If no answer: **61*[SummerNumber]#
  • If unreachable: **62*[SummerNumber]#

To Disable Forwarding:

  • Disable all forwarding configuration: ##21#
  • Disable busy forwarding: ##67#
  • Disable no answer forwarding: ##61#
  • Disable unreachable forwarding: ##62#

Notes:

➤ Boost Mobile

Unconditional Forwarding (All Calls):

Dial: *72[SummerNumber]

➡️ Example: *721234567890

Press Call.


Conditional Forwarding:

Not reliably supported. Most Boost users only have access to unconditional forwarding.

To Disable Forwarding:

  • Disable all forwarding configuration: *73 or *720
  • No carrier-supported method to disable conditions separately

Notes:

  • Boost Mobile does not support iPhone’s call forwarding settings—use dial codes only
  • Behavior may vary by device model or region[

ℹ️ iPhone users: Make sure Live Voicemail is turned off](#2-iphone-users-turn-off-live-voicemail)

➤ Mint Mobile

Unconditional Forwarding (All Calls):

Dial: **21*[SummerNumber]#

➡️ Example: **21*1234567890#

Press Call.


Conditional Forwarding:

Set each one up separately if you want Summer to handle multiple scenarios:

  • If busy: **67*[SummerNumber]#
  • If no answer: **61*[SummerNumber]#
  • If unreachable: **62*[SummerNumber]#

To Disable Forwarding:

  • Disable all forwarding configuration: ##21#
  • Disable busy forwarding: ##67#
  • Disable no answer forwarding: ##61#
  • Disable unreachable forwarding: ##62#

Notes:

➤ Cricket Wireless

Unconditional Forwarding (All Calls):

Dial: **21*[SummerNumber]#

➡️ Example: **21*1234567890#

Press Call.


Conditional Forwarding:

Set each one up separately:

  • If busy: **67*[SummerNumber]#
  • If no answer: **61*[SummerNumber]#
  • If unreachable: **62*[SummerNumber]#

To Disable Forwarding:

  • Disable all forwarding configuration: ##21#
  • Disable busy forwarding: ##67#
  • Disable no answer forwarding: ##61#
  • Disable unreachable forwarding: ##62#

Notes:

➤ Consumer Cellular

Unconditional Forwarding (All Calls):

Dial: **21*[SummerNumber]#

➡️ Example: **21*1234567890#

Press Call.


Conditional Forwarding:

Set each one up separately:

  • If busy: **67*[SummerNumber]#
  • If no answer: **61*[SummerNumber]#
  • If unreachable: **62*[SummerNumber]#

To Disable Forwarding:

  • Disable all forwarding configuration: ##21#
  • Disable busy forwarding: ##67#
  • Disable no answer forwarding: ##61#
  • Disable unreachable forwarding: ##62#

Notes:

➤ Sprint

⚠️ Sprint has merged with T-Mobile, but if you're still on an older Sprint plan or device, use the instructions below.


Unconditional Forwarding (All Calls):

Dial: *72[SummerNumber]

➡️ Example: *721234567890

Press Call. You should hear a confirmation tone.


Conditional Forwarding:

Set each one up separately:

  • If busy: *73[SummerNumber]
  • If no answer: *74[SummerNumber]
  • If unreachable: *75[SummerNumber]

⚠️ These may not be available on all Sprint plans or devices—test to confirm.

To Disable Forwarding:

  • Disable all forwarding configuration: *720
  • Conditional disable codes are not consistently supported on Sprint legacy plans

Notes:

➤ Vonage (Residential)

Unconditional Forwarding (All Calls):

Dial: *72[SummerNumber]

➡️ Example: *721234567890

Press 1 to confirm. You should hear a confirmation tone.


To Disable Forwarding:

  • Disable all forwarding configuration: *73

Notes:

➤ Xfinity Mobile

Unconditional Forwarding (All Calls):

Dial: *72[SummerNumber]

➡️ Example: *721234567890

Press Call. You should hear a confirmation tone.


Conditional Forwarding (No Answer Only):

Dial: *71[SummerNumber]

➡️ Example: *711234567890

Press Call. You should hear a confirmation tone.


To Disable Forwarding:

  • Disable all forwarding configuration: *73
  • No known support for disabling conditional forwarding separately

Notes:

➤ U.S. Cellular

Unconditional Forwarding (All Calls):

Dial: *72[SummerNumber]

➡️ Example: *721234567890

Press Call. You should hear a confirmation tone.​


Conditional Forwarding:

  • Busy: *90[SummerNumber]
  • No Answer: *92[SummerNumber]​

Press Call after each code.​


To Disable Forwarding:

  • Disable all forwarding configuration: *720
  • Disable busy forwarding: *900
  • Disable no answer forwarding: *920​

Notes:

Popular VOIP & Web Phone Systems


➤ OpenPhone

📖 Full setup instructions from OpenPhone support


Unconditional Forwarding (All Calls):

  1. Go to Settings on the left menu
  2. Under Workspace, click Phone Numbers
  3. Select the phone number you want to forward
  4. In the Call flow section, select Forward all calls
  5. Add your Summer number and click Forward


Conditional Forwarding (Based on Time or No Answer)

  • For forwarding calls after business hours:
  1. Call flow settings
  2. Click Business hours
  3. Under Outside business hours, add the Summer number you want to forward to
  • For forwarding during business hours (unanswered calls):
  1. In Call flow, scroll to the Unanswered calls section
  2. Under When no one answers, select Forward to another number
  3. Enter your Summer number


To Disable Forwarding:

  • Remove the Forward rule(s) in the same Call flow sections.

Notes:

  • OpenPhone supports detailed routing based on time and availability
  • Rules are per-number. If you have multiple numbers, configure each one.

➤ RingCentral

📖 Full setup instructions from RingCentral support


Unconditional Forwarding (All Calls):

  1. Click your profile picture at the top left
  2. Click Call rules
  3. Toggle on Forward all calls -- set your Summer number
  4. Click Save


Conditional Forwarding (To forward calls based on a schedule):

  1. Click your profile picture at the top left
  2. Click Call rules
  3. Click Add schedule
  4. Set the date and time you want calls to be forwaded
  5. Click Save


To Disable Forwarding:

  • Go to Call rules and toggle off Forward all calls or remove any active schedule


Notes:

  • RingCentral supports flexible routing and scheduling
  • Settings apply per user or extension
  • If you need “no answer” behavior, set it using your RingCentral call handling settings (e.g., after X seconds, forward).

➤ Google Voice


Unconditional Forwarding (All Calls):

To forward calls from Google Voice to Summer, you’ll need to link your Summer number and verify it.

  1. Go to Profile (top-right corner) and go to Account > Account Settings
  2. Enable the "Call Forwarding Verification - SMS authentication code"

You can setup and configure call forwarding from Google Voice desktop browser or from within Google Voice's device app.


For Desktop (Recommended) -

  1. In a new tab, go to Google Voice
  2. Click the Settings gear icon (top right)
  3. Under Account > Linked numbers, click New linked number
  4. Enter your Summer number and click Send code
  5. Go back to Summer Admin > Account Settings tab and click View text messages
  • This will open a window displaying any verification codes sent to your Summer number
  1. Return to Google Voice, enter the code received and click Verify
  2. Once verified, go to Settings > Calls
  3. Under Incoming calls, ensure Call Forwarding is enabled for your linked Summer phone number.
  4. Return to the Summer Admin and disable verification code toggle.


For Device App -

  1. Open the Google Voice app
  2. Tap the menu icon (☰) and go to Settings, tap into 'Devices and numbers'
  3. Tap 'New linked number'
  4. Enter your Summer number
  • Uncheck "number belongs to this device"
  • Tap Send code
  1. Return to the Summer Admin > Account Settings, click View text messages to get the code
  • This will open a window displaying any verification codes sent to your Summer number
  • Remember to disable verification code toggle.
  1. Back in Google Voice App, enter the code received and tap Verify
  • Google voice automatically enables call forwarding when you link a number, however it's best to double check
  1. In the Google Voice app, tap back out of Devices and numbers.
  2. Still within settings, tap into 'Incoming Calls'
  • Ensure call forwarding toggle is enabled for your Summer phone number.


To Disable Forwarding:

  • Go to Settings > Calls > Incoming calls and toggle it OFF
  • Or go to Settings > Linked numbers and remove Summer number

Notes:

  • Google Voice does not officially support conditional forwarding (busy/no answer/unreachable).
  • If you need conditionals, set them on your carrier line (AT&T/T-Mobile/Verizon) instead.
  • iPhone users: turn Settings → Phone → Live Voicemail → OFF.
  • Call forwarding options vary depending on if you have the paid or free version.
  • If your Google Voice number is displaying on all of your Summer calls, ensure you have the following setting disabled in Google Voice.

➤ Grasshopper

📖 Full setup instructions from Grasshopper support


Unconditional Forwarding (All Calls):

  1. Log into your Grasshopper account
  2. Go to Settings > Call Forwarding Settings > Extensions
  3. Find the number or extension you want to forward and click Edit
  4. Enter your Summer number as the forwarding destination (can be mobile, landline, or voicemail)
  5. Choose how Grasshopper should handle the call (e.g., announce it before pickup)
  6. Select a forwarding schedule (e.g., 24/7, weekends, or custom hours)
  7. Save your settings
  8. Make a test call to confirm forwarding is working


Conditional Forwarding:

  • Grasshopper supports conditional call routing using scheduling options
  • Apply forwarding only at specific times during the setup by customizing the schedule


To Disable Forwarding:

  • Go to the same Call Forwarding Settings > Extensions section
  • Click Edit and remove the Summer number or adjust the time schedule to disable routing

Notes:

  • Grasshopper forwarding works across mobile, desktop, and landline
  • You can forward to multiple numbers or configure advanced handling if needed

➤ DialPad

📖 Full setup instructions from Dialpad support


Unconditional Forwarding (All Calls):

  1. In Summer Admin
  • Go to Account > Account Settings
  • Enable "Call Forwarding Verification - Dialpad"
  1. Log into your Dialpad account
  • Go to Your Settings > Your Devices
  • Click Add new, then select Add a forwarding number
  • Enter your Summer number and click Verify
  • Dialpad will call your Summer number and she will press 1 to verify the setup
  • Choose how you want forwarding to work under Advanced Settings (e.g., always forward, forward when unavailable, etc.)


Conditional Forwarding:

  • Dialpad allows advanced call routing (e.g., based on availability, business hours, or custom logic)
  • Configure these options under Call Handling & Forwarding in your user or company settings.


To Disable Forwarding:

  • Return to Your Settings > Your Devices and remove or disable the Summer forwarding number


Notes:

  • Summer verification is required to complete setup
  • Dialpad also supports call routing logic through departments, call queues, and ring rules

➤ Vonage Business Communications

📖 Full setup instructions from Vonage Business support


Unconditional Forwarding (All Calls):

​For Admins:

  1. Sign in to the Admin Portal.
  2. Go to Phone System > Extensions.
  3. Hover over the desired extension and click the Pencil (Edit) icon.
  4. Click Call Forwarding and enable "Forward Calls"
  5. Select Send To Ext. or Number, enter the forwarding number (e.g., your Summer number), and choose your Caller ID preference.
  6. Click Save.​

For End Users:

  1. Sign in to your Vonage Account.
  2. Click your Avatar, then select Settings.
  3. Click Call Forwarding and enable Forward All Calls.
  4. Enter your Summer number and select your Caller ID preference.
  5. Click Save.​


Conditional Forwarding:

  • Utilize features like Follow Me and Simultaneous Ring to forward calls based on specific conditions.
  • These settings can be configured in the Call Forwarding section of your account.​


To Disable Forwarding:

  • Admins: Turn off Forward Calls in the Admin Portal.
  • End Users: Choose another option like Voicemail, Follow Me, or Simultaneous Ring in your settings.


Notes:

  • Avoid forwarding to mobile numbers using the Vonage Mobile App to prevent duplicate notifications.

➤ Zoom Phone

📖 Full setup instructions from Zoom Phone support


Unconditional Forwarding (All Calls):

  1. Sign in to the Zoom web portal
  2. Click Phone in the navigation menu
  3. Go to the Settings tab
  4. Under Business Hours or Closed Hours, click Edit next to Call Handling
  5. Click Add Phone Number to forward to an external number (e.g., your Summer number)
  6. Enter the country/region, phone number, and a description
  7. Click Save


Conditional Forwarding:

Repeat the above for Closed, Break, or Holiday hours with different rules.

​

To Disable Forwarding:

  • Go to Call Handling for the time period
  • Remove the Summer number or turn off forwarding


Notes:

  • If you can't add an external number, your Zoom admin may need to enable this feature

➤ FreedomVoice

📖 Full setup instructions from FreedomVoice support


Unconditional Forwarding (All Calls):

  1. Log in to your WebLink Control Panel
  2. Go to Settings > Call Delivery > Call Forwarding
  3. Select your default mailbox (e.g., 801)
  4. Click Add to create a new forwarding entry
  5. Enter your Summer number as the forwarding destination
  6. (Optional) Click Add Call Time to choose specific days/times
  7. Click Save​


Conditional Forwarding:

  • Various settings may be available in configuration settings


To Disable Forwarding:

  • In the Call Forwarding section, uncheck the Active box next to the forwarding entry
  • Alternatively, remove the forwarding entry by clicking Remove​


Notes:

  • Your system may offer additional custom settings based on your plan

➤ Landlines (General Instructions)


Unconditional Forwarding (All Calls):

  1. Dial: *72[SummerNumber]

➡️ Example: *721234567890

  1. Press Call or wait for confirmation (you may hear a tone or voice prompt)


To Disable Forwarding:

  • Disable all forwarding configuration: *73


Notes:

  • Works with most U.S. landline providers (e.g., AT&T, CenturyLink, Frontier).
  • If *72 or *73 doesn’t work, contact your phone provider for support.
  • These codes are dialed like a regular phone number—no settings needed.

Still stuck? Ping us in the chat or email [support@heysummer.com]—we’ll walk you through it live.

Updated on: 26/08/2025

Was this article helpful?

Share your feedback

Cancel

Thank you!