We built these tools because our customers asked for them. Whether you're porting numbers, setting up a new location, or wondering why your calls aren't getting answered, these utilities give you real answers fast — no support ticket required.
Know exactly what you're porting — before you port it
Thinking about bringing your existing numbers over to Cannon VoIP? Before you submit a port request, it helps to know exactly what you're working with.
Our Number Lookup tool lets you paste in a single number or an entire list and instantly pull the carrier, caller name (CNAM), city and state, line type, OCN, and whether the number is portable — along with an estimated timeline for how long the port will take. Enter numbers in almost any format, as a range, or upload a .txt or .csv file for a large batch. Results export back out to .csv or .txt so you can share them with your team or keep them on file.
The tool runs up to 50 lookups per day, which is more than enough for most businesses evaluating a move to Cannon VoIP. One thing to keep in mind: port timelines shown are estimates — the losing carrier sets the final date, and that can shift. But knowing what to expect upfront makes the whole process a lot smoother.
Look up a numberTest your network before you deploy — and when calls go wrong
Call quality problems almost always start at the network level. Before you roll out desk phones, softphone apps, or web-based calling at any location, run our VoIP Network Readiness checker from that exact location first.
The test checks your public IP, your ISP, and SIP connectivity, then produces a readiness score with a clear pass/fail breakdown for each component. It takes just a few minutes and can save you hours of troubleshooting down the road. It's also the first thing we recommend running when you're chasing down an existing call-quality issue — download the report and send it to your IT team or to Cannon VoIP support, and it gives us everything we need to diagnose the problem quickly.
For the most thorough results: to run the full SIP port test, save the page and open it locally rather than running it directly in the browser.
Find out if your calls are trusted — or flagged as spam
Even if your calls are going out clean, there's a good chance you don't know what level of trust they're being assigned by the carriers that receive them. That's what STIR/SHAKEN attestation is about, and it has a direct impact on whether your calls get answered.
Call attestation test line
(817) 973-1573
Call this number from the line you want to check. The system reads back the caller ID it received and the attestation level assigned to your call: A, B, C, or none.
A — Fully verified
Carriers treat it as trusted; you get the best answer rates.
B / C — Partially verified
Your caller ID is only partly verified, which can affect how calls display or rank.
None — Unverified
Your call is unverified, putting it at risk of being flagged as spam or blocked before it ever reaches the person you're calling.
Use this line any time you want to confirm your numbers are landing at full A attestation — after a port, after a configuration change, or any time call answer rates start to dip unexpectedly.
These tools are free to use and available anytime. If something in your results raises a question, our team is always here to help you make sense of it.