# Is there a call quality test number with HD voice quality?
**URL:** https://community.voip.ms/t/is-there-a-call-quality-test-number-with-hd-voice-quality/485
**Category:** General
**Created:** [June 25, 2024, 1:07pm UTC](https://community.voip.ms/t/is-there-a-call-quality-test-number-with-hd-voice-quality/485 "2024-06-25T13:07:04Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@amateur](https://community.voip.ms/u/amateur)
#### Post date: [June 25, 2024, 1:07pm UTC](https://community.voip.ms/t/is-there-a-call-quality-test-number-with-hd-voice-quality/485/1 "2024-06-25T13:07:04Z")
Does anybody know of a test number for call quality tests in HD voice quality ?
Here are a few test numbers that I know of - they all seem to be limited to G.711:
- echo test numbers:
1-250-412-5922
1-416-342-9562
1-804-222-1111
1-909-390-0003
1-925-259-0082
011-49-89-7210-1099-701
011-61-2-8503-8000
011-64-9-887-6986
- numbers connecting to music recordings:
1-226-336-1437
1-248-434-5508
1-719-266-2837
1-844-387-6962
011-49-89-7210-1099-703
- other test numbers:
1-408-647-4636
1-858-651-5050
1-914-737-9938
011-49-89-7210-1099-702
011-61-2-8503-8000
011-64-9-887-6986
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### Author:  [@mdastous](https://community.voip.ms/u/mdastous)
#### Post date: [June 27, 2024, 12:34am UTC](https://community.voip.ms/t/is-there-a-call-quality-test-number-with-hd-voice-quality/485/2 "2024-06-27T00:34:55Z")
How do you know it’s not HD ?
What about 4443 Voip.ms’s echo test ? I also think it’s not HD but we can’t be 100% sure since the server could be transcoding from from G.711.
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### Author:  [@amateur](https://community.voip.ms/u/amateur)
#### Post date: [June 27, 2024, 3:11pm UTC](https://community.voip.ms/t/is-there-a-call-quality-test-number-with-hd-voice-quality/485/3 "2024-06-27T15:11:19Z")
First I check a given number using G.711, then I check it again using G.722: if there is the same muffled sound in both cases, then it’s obviously not HD.
On the other hand, after dialing 4443 with the phone set to G.722 I definitely get HD quality.
I should have said that I am looking for a HD capable test number that is external to the phone system I am using. 🙂