--- title: "iPhone Softphone rings intermittently (or not at all)" slug: "iphone-softphone-rings-intermittently-or-not-at-all" updated: 2026-03-02T21:23:28Z published: 2026-03-02T21:23:28Z canonical: "docs.ucstack.io/iphone-softphone-rings-intermittently-or-not-at-all" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.ucstack.io/llms.txt > Use this file to discover all available pages before exploring further. # iPhone Softphone rings intermittently (or not at all) --- > [!TIP] > Applies To: iPhone 12 • 13 • 14 • 15 • 16 • All Pro/Max/Plus models • iOS 15-18 ## **✅ Compatible iPhone Models** | **Series** | **Models** | **iOS Version** | | --- | --- | --- | | **iPhone 16 Series** | iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max | iOS 18 | | **iPhone 15 Series** | iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max | iOS 17/18 | | **iPhone 14 Series** | iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max | iOS 16/17/18 | | **iPhone 13 Series** | iPhone 13, iPhone 13 mini, iPhone 13 Pro, iPhone 13 Pro Max | iOS 15-18 | | **iPhone 12 Series** | iPhone 12, iPhone 12 mini, iPhone 12 Pro, iPhone 12 Pro Max | iOS 14-18 | > [!NOTE] > **Note:** iOS versions may vary by model, but the settings locations are consistent across all recent versions. --- ## **🎯 Introduction** If your iPhone is **ringing intermittently or not at all** for incoming softphone calls, several iOS features could be interfering. Common causes include : - 🔕 **Focus Modes** (Do Not Disturb, Sleep, Work) — Silences calls based on schedule or activity - 🔇 **Silent switch / Ring/Silent toggle** — Physical switch on side of iPhone - 🔋 **Low Power Mode** — Reduces background activity, including notifications - 📶 **Background App Refresh** — May be disabled for your softphone - 🔊 **Bluetooth / AirPlay** — Audio routing to connected devices - 📱 **Notification settings** — Alerts may be disabled or set to "Delivered Quietly" This guide provides **step-by-step solutions** for all iPhone models running iOS 15 through iOS 18. --- ## **⚡ Quick Checks (Try These First)** | **Check** | **Action** | | --- | --- | | **🔇 Silent switch** | Check the physical **Ring/Silent switch** on the left side of your iPhone (above volume buttons). Toggle toward screen to enable ring . | | **🔕 Focus Modes** | Open **Control Center** (swipe down from top-right) → look for **Focus** icon (crescent moon) → tap to disable | | **🔊 Volume level** | Press volume up button and ensure **ringer volume** is turned up (visible in Control Center) | | **🔄 Restart iPhone** | Press and hold **Power + Volume** buttons → slide to power off → wait 30 seconds → turn back on | | **🎧 Bluetooth** | **Control Center** → tap **Bluetooth icon** to toggle off temporarily to test speaker audio | --- ## **🛠️ Step-by-Step Solutions (All iPhone Models)** ### **1️⃣ Disable Focus Modes (Do Not Disturb, Sleep, Work, etc.)** | **Navigation** | **Control Center** (swipe down from top-right) → tap the **Focus** tile to disable | | --- | --- | | **Settings > Focus** → check each mode (**Do Not Disturb, Sleep, Personal, Work**) and ensure they are OFF or properly configured to allow calls from your softphone | | Under **"Allowed Notifications"**, ensure your softphone app is added to **"People & Apps"** list | ### **2️⃣ Disable Low Power Mode** Low Power Mode significantly reduces background activity, including notifications and app refreshes . | **Navigation** | **Settings > Battery** → toggle **Low Power Mode** OFF | | --- | --- | | **Control Center** → tap **Battery icon** if you've added Low Power Mode to Control Center | ### **3️⃣Enable Background App Refresh** Background App Refresh allows apps to check for updates and receive notifications when not in use . | **Navigation** | **Settings > General > Background App Refresh** | | --- | --- | | Ensure it's set to **"Wi-Fi & Cellular Data"** (or at least "Wi-Fi") | | Scroll down and ensure your **softphone app** is toggled ON | ### **4️⃣Check Notification Settings** | **Navigation** | **Settings > Notifications** → select your softphone app | | --- | --- | | Ensure **"Allow Notifications"** is toggled ON | | Under **"Alerts"**, enable **Lock Screen, Notification Center, and Banners** | | Check **"Sounds"** is enabled (not "None") | ### **5️⃣Check Cellular Data Settings** If you're on mobile data, ensure your softphone has permission to use cellular data . | **Navigation** | **Settings > Cellular** (or **Mobile Data**) | | --- | --- | | Scroll down to the list of apps and ensure your **softphone app** is toggled ON | | If using Wi-Fi calling, ensure **Wi-Fi Calling** is enabled under **Cellular > Wi-Fi Calling** | ### **6️⃣Check Call Forwarding & Do Not Disturb While Driving** | **Navigation** | **Settings > Phone > Call Forwarding** → ensure it's OFF unless intentionally set | | --- | --- | | **Settings > Focus > Driving** → check if **Do Not Disturb While Driving** is enabled and configure to allow calls from your softphone | | Add your softphone app to **"Allowed Apps"** under the Driving Focus | ### **7️⃣Reset All Settings (Last Resort)** > [!CAUTION] > **Warning:** This resets all system settings (Wi-Fi passwords, wallpapers, etc.) but does NOT delete personal data. | **Navigation** | **Settings > General > Transfer or Reset iPhone > Reset** | | --- | --- | | Select **"Reset All Settings"** and confirm | --- ## **📱 Quick Reference by iOS Version** | **iOS Version** | **Notes** | | --- | --- | | **iOS 18** | Enhanced Focus modes, new Control Center layout | | **iOS 17** | StandBy mode, improved Focus filters | | **iOS 16** | Lock Screen customization, Focus filters | | **iOS 15** | Focus modes introduced, Notification Summary | --- ## **✅ Troubleshooting Checklist** | **#** | **Task** | | --- | --- | | 1 | Ring/silent switch set to ring mode (not orange) | | 2 | All Focus modes (Do Not Disturb, Sleep, Work) disabled | | 3 | Low Power Mode turned OFF | | 4 | Background App Refresh enabled for softphone | | 5 | Notification settings allow alerts with sound | | 6 | Cellular data enabled for softphone | | 7 | Bluetooth turned off to test speaker audio | | 8 | iPhone restarted | ---