1) Your CNAM information must be entered at Voice Services–>SP(FPL) Service-->Calling Features-->CallerIDName. Refer to pages 28 and 29 from the PDF guide at http://forum.fongo.com/viewtopic.php?f= ... 805#p73839.
Based on your post, you've done this, but it doesn't hurt to double check.
2) Telus Mobility, Bell Mobility, and their subsidiaries do not support CNAM (Caller ID Name). Unless your phone number and corresponding name are in the recipient's cellphone contact list, your name may not appear on incoming calls with those services. If it does, CNAM info is simply being pulled from the contact list in the smartphone. CNAM working correctly is not guaranteed with cellular services.
So testing using Public Mobile (a subsidiary of Telus Mobility), for example, is useless since CNAM doesn't work with Public Mobile at all.
3) Dial *82 to ensure outgoing Caller ID is unblocked:
4) If you want to test properly, use the free Fongo Mobile smartphone app and make calls to it: https://www.fongo.com/ using Freephoneline. Make sure you delete your FPL # in your smartphone's address book before testing. Outgoing CNAM from FPL will appear in the Fongo Mobile app if your ATA is configured properly.
From th PDF guide found at http://forum.fongo.com/viewtopic.php?f= ... 805#p73839 . . .or when someone else is calling me (I only see their phone number)
"Why am I not receiving Caller ID Name information on all incoming calls?
CNAM lookups are dependent upon your VoIP service provider--and not the Obihai ATA.
Freephoneline doesn't do CNAM lookups (I.E., Freephoneline doesn't lookup the name of the caller, using the incoming phone number, in an external database). Unless CNAM is being sent by the call provider, which often is not the case with cellular calls, only the phone numbers are going to appear. CNAM lookups cost money, and for a moderately priced one time fee, FPL isn't going to do CNAM lookups.
http://forum.fongo.com/viewtopic.php?f= ... 68&p=25678 (a lot of replies in that thread are incorrect; CNAM will show up if it's sent by the provider)
"Just a reminder, as has been provided in other threads, when the call display feature is enabled, it will only show the information that is being sent by the provider. If that provider only sends a number, we can only display a number. This is especially common for cell phone providers and a number of digital service providers."--Fongo_mike"
So, with an incoming call to your FPL #, an incoming phone number will appear on your callerid, but a name only shows if that info is also sent by the provider. Other VoIP services typically charge a fee per call to do a lookup in a CNAM database (phone number is queried for a name in a database). FPL doesn't offer that option. If CNAM info is passed on by the provider, FPL will display CNAM."
5) If you want to test incoming CNAM, then test by using the Fongo Mobile smartphone app, and call your FPL phone number, configured on an Obihai ATA, using Fongo Mobile. In the Fongo Mobile app, before making a call to your FPL#, under Account-->Settings--> Phone Service-->Caller ID, put a name in there. And make sure "Show My Caller ID" is enabled. Possibly you may need to pay to remove ads from Fongo Mobile to get access to the option to add an outgoing CID Name: https://support.fongo.com/hc/en-us/arti ... from-Fongo.
If Fongo Mobile's outgoing CNAM is not showing up on incoming calls to your FPL number, login to your ATA and navigate to Status-->Call History. If incoming CNAM from Fongo Mobile shows up in the ATA's Call History, then there's some compatibility issue between the ATA and your specific phone. And if that's the case, you may want to check out my replies to frankw over here: newegg-obihai-obi200-ata-49-99-1-50-ehf ... #p26942133.
It's not clear to me whether this issue is on your end or the caller's. Test by calling your smartphone. Keep the smartphone far away from the speaker on the other (FPL/Obihai attached) phone when testing. Otherwise, you will get feedback/screeching.Also, I get weird and loud metallic echoes/screeching on both sides when one (or both the receiver and the caller) uses speaker/hand free mode.
Anyway these are things I would try:
A) Lower speaker volume on your phone. I suspect outgoing speaker volume is too loud and feeding back into the mic, which would result in the noise you're hearing.
B) Try adjusting volume levels in the ATA.
Navigate to Physical Interfaces-->Phone Port-->
ChannelRXGain is for outgoing volume (mic). ChannelTXGain is for incoming volume (earpiece).
https://www.obitalk.com/forum/index.php ... 4#msg64084
Default for ChannelTXGain is -2. To me it just makes more sense to adjust volume on the handset.
ChannelRXGain default is -1. You could try lowering that value a bit further and testing.
C) Try a different phone
D) Possibly try a different power supply for the ATA
If the screeching continues, then you may want to consider the possibility that the ATA is defective.
Should you require further assistance, and if no one else here responds further, refer to the last page of the PDF guide, and try asking on the Obihai forums and at dslreports. You can also try contacting Obihai support.