Articles on: Call and SMS Management

Complete Guide to Troubleshooting and Optimizing Call Quality on Calilio

Clear, reliable call quality is essential for professional business communications. While Calilio delivers excellent audio quality in most situations, occasional technical issues with your internet connection, device, or environment can affect call clarity. This guide helps you diagnose and resolve common call quality problems to ensure every conversation on Calilio sounds crystal clear.

Common Call Quality Issues and Solutions

1. Choppy, Robotic, or Breaking Audio

Symptoms:

Audio cutting in and out during conversations
Robotic or distorted voice quality
Words dropping out intermittently
Delayed or stuttering speech

Common Causes: Internet jitter causes data packets to arrive out of order or get lost, resulting in audio degradation.

Quick Fixes:

Reset Your Internet Router

Unplug your router's power cable
Wait 60 seconds
Plug router back in and wait for full restart
Test call quality after reconnection

Switch Network Connection

If using WiFi, try switching to cellular data
If on cellular, connect to WiFi instead
This helps identify if the issue is network-specific

Close Background Applications

Shut down unnecessary programs using CPU or bandwidth
Close video streaming, downloads, or cloud backups
Keep only essential applications running during calls

Try a Different Device

Switch from mobile to desktop or vice versa
Test if the issue persists on the alternative device
If only one device has issues, the problem is device-specific

Contact Calilio Support If issues occur only with one specific contact, the problem may be on their end. Inform them to check.

2. One Party Cannot Hear the Other

Symptoms:

Complete audio loss on one or both sides
One person can hear but cannot be heard
Intermittent audio dropouts

Common Causes:

Microphone permission not granted to Calilio
Mute button accidentally activated
Call accidentally placed on hold
Hardware or network configuration issues

Solutions:

Enable Microphone Permissions through

Check Device Permissions

iOS: Settings→ Apps → Calilio → Microphone (ensure enabled)
Android: Settings → Apps → Calilio → Permissions → Microphone (allow)
Web/Desktop: Browser should prompt for microphone access; click "Allow"

Verify Mute Status

Check if mute button is activated on your device
Ask the other party to check their mute status
Look for visual indicators showing mute is active

Confirm Hold Status

Ensure the call is not on hold
Resume call if accidentally placed on hold
Check for hold indicators in the Calilio interface

Complete Device Restart

Power off your device completely
Wait 30 seconds
Power back on and test call again

3. Delayed or Out-of-Sync Audio (Echo Effect)

Symptoms:

Noticeable lag between speaking and hearing response
Conversations feeling awkward or out of sync
Long pauses before audio transmission begins

Common Causes: High latency in your internet connection causes delayed audio transmission between parties.

Solutions:

Test Internet Speed

Run a speed test to check latency (ping)
Ideal: Under 50ms latency for voice calls
High latency (150ms+) causes noticeable delays

Reset Router and Modem

Unplug both router and modem
Wait 60 seconds
Plug modem back in first, wait for full connection
Plug router back in, wait for full restart

Switch to Alternative Internet

Try cellular data if using WiFi
Use mobile hotspot as temporary backup
Test if delay persists on different network

Stop Background Programs

Close bandwidth-heavy applications (streaming, downloads)
Pause cloud syncing and backups
Stop video calls or screen sharing on other apps

Try Different Device Test on mobile vs desktop to determine if device-specific.

4. Echo or Feedback During Calls

Symptoms:

Hearing your own voice repeated back with delay
Feedback loop creating high-pitched noise
Audio bouncing back during conversation

Common Causes:

Speakerphone creating audio loop
Volume levels too high causing microphone pickup
Microphone and speaker too close together

Solutions:

Disable Speakerphone

Switch to handset mode on mobile
Use phone's earpiece instead of external speaker
This eliminates most feedback issues immediately

Lower Speaker Volume

Reduce volume to prevent sound from reaching microphone
Find comfortable level that doesn't cause feedback
Test different volume levels during call

Uncover Microphone

Ensure phone's microphone (usually bottom) is not blocked
Remove case if it covers microphone opening
Hold device properly to avoid covering mic

Use Headset

Switch to headphones or earbuds with microphone
Dedicated headset eliminates speaker-to-mic feedback
Bluetooth or wired headsets both work well

Restart Device Complete power cycle can reset audio settings and eliminate persistent echo.

5. Volume Too Loud, Too Quiet, or Inconsistent

Symptoms:

Difficulty hearing the other party clearly
Volume fluctuating during conversation
One party too loud while other is too quiet

Common Causes:

Incorrect device volume settings
Poor microphone positioning
Hardware sensitivity issues

Solutions:

Adjust Device Volume

Use volume buttons during call to adjust in real-time
Check both system volume and Calilio app volume
Ensure volume isn't muted or too low

Reposition Device

Move phone closer or farther from your mouth
Test different distances for optimal pickup
Speak directly toward microphone

Use Headset

Headsets provide consistent audio levels
Built-in volume controls for easy adjustment
Better isolation from environmental noise

Check Volume Settings

Mobile: Settings → Sound → Volume levels
Desktop: System sound settings and app settings
Ensure all volume controls are balanced properly

Switch Devices Test on different device to isolate hardware-specific volume issues.

6. Static, Crackling, or Background Noise

Symptoms:

Crackling or popping sounds during call
Static or white noise interference
Fuzzy or distorted audio quality

Common Causes:

Poor microphone positioning
Environmental interference
Damaged hardware
Network quality issues

Solutions:

Use Quality Headset

Dedicated headset reduces environmental noise
Better microphone quality than built-in options
Noise-canceling features help eliminate background sounds

Adjust Device Placement

Keep device away from electronic interference sources
Move away from WiFi routers, computers, other phones
Position microphone at consistent distance from mouth

Check Microphone Cleanliness

Clean microphone opening with soft, dry cloth
Remove debris or dust from microphone port
Ensure nothing is blocking microphone

Disable Speakerphone

Use handset mode to eliminate feedback and interference
Speakerphone picks up more environmental noise

Network Troubleshooting

Reset router if static seems network-related
Switch between WiFi and cellular data
Test if static occurs on all calls or just specific contacts

Try Different Device If static only occurs on one device, hardware may be damaged.

7. Calls Drop Unexpectedly or Disconnect Frequently

Symptoms:

Calls ending without warning
Abrupt disconnections mid-conversation
Frequent need to redial

Common Causes:

Unstable internet connection
Poor cellular signal
Device performance issues
Software problems

Solutions:

Ensure Network Stability

Reset router and modem
Test internet connection consistency
Check if other devices experience connection drops

Switch Networks

Move from WiFi to cellular or vice versa
Try different WiFi network if available
Use more stable connection source

Close Unnecessary Applications

Free up device RAM and CPU resources
Stop background processes consuming performance
Keep only essential apps running

Move to Better Signal Area

For cellular calls, move to location with stronger signal
Check signal strength bars on your device
Go near windows or outside if inside building

Restart Calilio App

Close Calilio app completely
Clear from background/recent apps
Reopen and test call stability

Update Calilio App

Ensure you're using latest app version
Check App Store/Google Play for updates
Install any pending software updates

Network and Internet Optimization

Check Your Internet Speed

Minimum Requirements for Calilio:

Download speed: 1 Mbps minimum
Upload speed: 1 Mbps minimum
Latency (ping): Under 100ms recommended

How to Test:

Visit speed test website (speedtest.net or similar)
Run test when experiencing call quality issues
Document results for troubleshooting reference

If Speed is Below Requirements:

Contact your internet service provider
Upgrade to higher-speed plan
Reduce number of devices on network during calls

Optimize WiFi Connection

Router Placement:

Position router centrally in workspace
Elevate router off floor for better signal distribution
Keep away from walls, metal objects, and electronic interference

WiFi vs Ethernet:

Use wired Ethernet connection when possible
Wired connections are more stable than wireless
Eliminates WiFi interference and congestion issues

Reduce Network Congestion:

Limit streaming video during business calls
Pause large downloads or uploads
Ask others on network to limit bandwidth use during calls

Router Quality of Service (QoS):

Configure QoS settings to prioritize voice traffic
Check router manual for QoS configuration
Allocate bandwidth priority to VoIP applications

Device Performance Optimization

Maintain Device Health

Regular Restarts:

Restart device at least weekly
Clears memory and resolves software glitches
Improves overall device performance

Keep Storage Free:

Maintain at least 10% free storage space
Delete unnecessary apps, photos, and files
Low storage affects device performance

Update Software:

Install Calilio app updates promptly
Keep device operating system current
Updates often include performance improvements

Close Background Apps:

Stop unnecessary apps before important calls
Check battery/performance settings for app activity
Disable auto-start for non-essential apps

Hardware Best Practices

Recommended Audio Equipment:

Good: Wired earbuds with microphone
Better: Bluetooth headset with noise cancellation
Best: Professional USB headset (for desktop)

What to Avoid:

Built-in laptop microphones (poor quality)
Cheap earbuds without proper microphone
Damaged or old audio equipment

Systematic Troubleshooting Approach

Identify Patterns

Ask These Questions:

Is it contact-specific?

Does poor quality occur only with certain contacts?
If yes, the issue is likely on their end

Is it device-specific?

Does the problem happen only on mobile or only desktop?
If yes, check that specific device's hardware and settings

Is it time-specific?

Do issues occur at certain times of day?
If yes, may indicate network congestion during peak hours

Is it location-specific?

Does quality improve in different physical locations?
If yes, environmental or local network factors are cause

Document Issues

Keep a call quality log tracking:

Date and time of problematic calls
Phone numbers experiencing issues
Type of problem (choppy, echo, drops, etc.)
What troubleshooting steps you tried
Network type used (WiFi or cellular)
Device used (mobile model, desktop browser)

This documentation helps identify patterns and assists Calilio support in resolving persistent issues.

When to Contact Calilio Support

Contact Support If:

Issues persist after trying all troubleshooting steps
Problems occur consistently with multiple contacts
Call quality severely impacts business operations
Device switching doesn't resolve issues
Network optimization shows no improvement

Information to Provide Support:

Essential Details:

Your Calilio phone number
Three recent numbers experiencing issues
Specific dates and times of problematic calls
Device type and Calilio app version
Description of specific audio problems
Network type used (WiFi or cellular)

Additional Helpful Information:

Steps already attempted to resolve issue
Whether issue is contact-specific
Pattern documentation (time of day, locations)
Speed test results
Any error messages received

Quick Reference Checklist

Before Every Important Call:

☑ Close bandwidth-heavy applications
☑ Check internet connection stability
☑ Test audio with quick call if possible
☑ Ensure device is charged or plugged in
☑ Position yourself in quiet environment
☑ Have backup device nearby if available

For Persistent Issues:

☑ Restart router (60-second power cycle)
☑ Restart device completely
☑ Switch networks (WiFi ↔ cellular)
☑ Use headset instead of speakerphone
☑ Test on different device
☑ Document patterns and contact support

Remember that call quality depends on multiple factors, and sometimes issues originate from the other party's connection or device. Regular maintenance, quality audio equipment, and a stable internet connection provide the foundation for excellent call experiences on Calilio.

Key Takeaways:

Most issues are network or device-related, not Calilio platform issues
Quick fixes (restart router, switch networks, close apps) resolve 80% of problems
Quality headsets significantly improve call clarity
Proactive maintenance prevents most call quality issues
Document persistent problems and contact support with specific details

Experiencing ongoing call quality issues? Contact Calilio support **available 24/7 via the live chat** with detailed information about your specific situation for personalized troubleshooting assistance.

Updated on: 26/11/2025

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