Testing phone systems and services requires reliable and consistent phone numbers to ensure functionality, quality, and compliance. This guide provides an overview of essential phone numbers you can use for various testing scenarios, from basic call testing to advanced feature verification.

Scope

From time to time, you may need to test outbound calling and functionality to off-net numbers. Below is a list of numbers we use for testing various aspects of phone system performance, including E-911 registration, call quality, international dialing, and fax functionality.

1. Introduction to Testing Phone Numbers

Testing phone systems, whether for development, troubleshooting, or quality assurance, necessitates the use of specific phone numbers. These numbers allow you to simulate real-world scenarios, ensuring that your phone systems operate correctly under various conditions.

2. Types of Testing Phone Numbers

E-911 Registration

• Dial 933: Dialing this number from your phone will provide a recording stating your E-911 registration status and the E-911 number displayed. This is essential for verifying that emergency services information is correctly registered and functional.

US/CAN Dialing, Call Quality, and Latency

For testing within the US and Canada, including call quality and latency, you can refer to a list of test numbers. These numbers are not owned and are subject to change, so it’s advisable to verify them periodically.

• Test Numbers Resource: Test Phone Numbers

International Dialing

International dialing tests ensure that your system can handle calls to global destinations with correct routing and audio quality.

• Melbourne, Australia:
  Dial 011 61 2 9192 0995. The Melbourne time and weather Auto Attendant should answer. Please note that international rates will apply to the call.
• US Embassy in London:
  Dial 011 44 207 499 9000. The US Embassy in London will answer with an automated answering machine. This number is useful for testing international connectivity and call routing to the UK.

Fax Testing

Fax functionality remains a critical feature for many businesses. Testing fax lines ensures that this service operates smoothly.

• Fax Numbers:
• Send a fax to 1-888-473-2963 or 215-825-8792. These fax servers will send a fax back to the number you sent the fax from, confirming successful transmission.

3. Best Practices for Using Testing Phone Numbers

Documentation and Tracking

Maintain detailed records of the phone numbers used in testing, including their purpose, location, and any specific test results. This ensures that you can replicate tests or troubleshoot issues based on past data.

Regular Testing Schedule

Incorporate a regular schedule for testing with these phone numbers, especially after system updates or changes. Regular testing helps catch potential issues early before they affect end-users.

Ensure Compliance

Ensure that your use of testing phone numbers complies with all relevant regulations and standards, particularly when testing involves international or emergency service numbers.

Use Automated Testing Tools

Where possible, integrate automated testing tools that can use these phone numbers to conduct routine checks, providing consistent and repeatable results.

4. Conclusion

Phone numbers for testing are critical tools in maintaining the reliability and functionality of your phone systems. By utilizing a variety of numbers—local, toll-free, international, and special service numbers—you can ensure that your systems perform well under all conditions. Regular testing, proper documentation, and adherence to best practices will help you maintain a high level of service quality and operational integrity.