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Most ATA boxes are supplied configured for USA networks and since they are not actually being plugged into a BT network they can stay with default USA settings. When you get one of these, do the basic settings for VOIP to your service provider e.g A&A then connect a simple phone with a BT connector wired for 2 wires to the BT to RJ11(small connector) interface lead. Test your SIP registered number from a mobile and the phone should ring. Then test you can receive the call and make a call hearing voice both ways. That's the easy part! In the ATA box config. Save a backup XML configuration file.
Now connect your ATA VOIP box to a BT spec. DECT phone system some or all of these will happen or you find out later:
1. Some phones detect when connected to a BT line and won't do anything if the check fails,
2. The phone bell ringer is unusually strange, a single ring with a larger time gap.
3. The answer machine part of the base station will not answer.
4. The answer machine keeps recording after the caller has hung up.
5. Issues with caller Display on a BT spec. phone.
6. Some phones ring, others don't.
Answers:
1. Phones on BT lines detect voltage (50V) on an open line to tell the phone it's connected. Phones with an internal rectifier work o.k, others won't. Select whichever polarity reversal option works.
2. ATAs configured for USA use a single ring, large gap and different ring tone sequences or cadence.
3. U.K base station answer machines are configured for BT ring sequences and aren't getting sufficient rings with expected timings.
4. In BT systems when a remote caller hangs up, the line loop is disconnected and this disconnect is used to stop the recording. The HT802 option Loop Current disconnect default no should be set to YES
5. Caller Display: The USA config. worked for me, but should be changed to UK spec.
6. Most modern handsets have low power ringers, some older phones don't. The GS HT802 box has an option to set for high ringer power - set it high, particularly if more than one phone is on the same port.
This forum has repeated posts for HT802 Advanced and phone port configurations which must be done if you are connecting a UK DECT phone system. Before starting in Basic settings, change the webgui session time out from 10-60 minutes. The HT802 loses all previous unsaved edits after timeout!
The easiest way to edit on the GUI is to delete each line entry then copy and past the new line, when finished make a second config. backup. I can't post a screengrab of my config, most options are already posted, these are mine you can copy and paste:
UK Ring cadence settings for GS HT802 VOIP adapter Advanced Settings.
(Default settings cause issues with phone connection and answering)
Navigate to the BASIC SETTINGS page:
Time Zone: GMT (London, Great Britain)
Self-Defined Time Zone: GMT0BST,M3.5.0/1,M10.5.0
Navigate to the ADVANCED SETTINGS page:
System Ring Cadence: c=400/200-400/2000;
Dial Tone: f1=350@-19,f2=440@-22,c=0/0;
Ringback Tone: f1=400@-20,f2=450@-20,c=400/200-400/2000;
Busy Tone: f1=400@-20,c=375/375;
Reorder Tone: f1=400@-20,c=400/350-225/525-0/0;
Confirmation Tone: f1=1400@-10,c=0/0;
Call Waiting Tone: f1=400@-20,c=100/2000;
Prompt Tone: f1=350@-19,f2=440@-22,c=0/0;
Conference Party Hangup Tone: f1=400@-20,c=0/0;
Special Proceed Indication Tone: f1=350@-19, f2=440@-22, c=750/750-0/0;
NTP Server: uk.pool.ntp.org
Navigate to the PROFILE 1/2 (FXS PORT on HT813) page(s):
MWI Tone: Special Proceed Indication Tone
Dial Plan: { 10[015] | 11[129] | 999 | 11[68]xxx | 1[45]7[1-2] | 08001111 | 0845464x | 0[1235789]xxxxxxxxx | 1410[1235789]xxxxxxxxx | 14700[1235789]
xxxxxxxxx | 00xxx. | x+ | \+x+ | *x+ | *xx*x+ }
SLIC Setting: UK
Caller ID Scheme: SIN 227 - BT
Polarity reversal: YES
Loop current disconnect: YES
Hook Flash Timing: Minimum: 60 Maximum: 200
Ring Frequency: 25
Ring Tone 1: c=400/200-400/2000;
Ring Tone 2: c=400/200-400/2000;
Ring Tone 3: c=400/200-400/2000;
Ring Tone 4: c=400/200-400/2000;
Ring Tone 5: c=400/200-400/2000;
Ring Tone 6: c=400/200-400/2000;
Ring Tone 7: c=400/200-400/2000;
Ring Tone 8: c=400/200-400/2000;
Ring Tone 9: c=400/200-400/2000;
Ring Tone 10: c=400/200-400/2000;
Call Waiting Tone 1: f1=400@-20,c=100/2000;
Call Waiting Tone 2: f1=400@-20,c=100/2000;
Call Waiting Tone 3: f1=400@-20,c=100/2000;
Call Waiting Tone 4: f1=400@-20,c=100/2000;
Call Waiting Tone 5: f1=400@-20,c=100/2000;
Call Waiting Tone 6: f1=400@-20,c=100/2000;
Call Waiting Tone 7: f1=400@-20,c=100/2000;
Call Waiting Tone 8: f1=400@-20,c=100/2000;
Call Waiting Tone 9: f1=400@-20,c=100/2000;
Call Waiting Tone 10: f1=400@-20,c=100/2000;
Some settings are low importance and won't stop a phone working e.g dial plan which I don't use Remember to click on the "Update" and "Apply" buttons located at the bottom of every page to save and activate the changes BEFORE THE WEBGUI TIMES OUT.
Here's a good tip I use. There are many daunting settings in these boxes, VOIP phones and routers which are hard to find and cross reference to internet forum posts. I now do a screen grab of my device config screens, import them into Acrobat, convert to PS then OCR. Once OCR'd I can search the pdf screen grab for config. terms.
Edited by Voxmagna123 (Thu 15-May-25 18:06:02)