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Backlight lights up based on SIP session expire
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CFortC Offline
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Post: #5
RE: Backlight lights up based on SIP session expire
Very good question. To confirm the settings are identical (except for user name, password) I exported the phone settings to CFG (text) file and arrayed the two account settings side by side in Excel. Identical.

I then re-checked the settings on the VoIP provider configuration site. If there are any differences, they elude me for now.

To get to the point, I tested with the first account registration disabled, and only the second one enabled. So just one account active: voila! the backlight now comes on every interval. However, the interval is not the Server Expires time (say 300s) but exactly one-half the Server Expires time (150s in my case). What the?

For sanity's sake, I re-tested with both accounts active: the backlight comes on every one-half of the Server Expires time. This is different from what I thought I was observing yesterday, but it is definitely the case today.

Finally, I re-tested with only the first account active: the backlight stays OFF, just as before.

Given all the scouring of the phone settings that I've done, this is quite mysterious. Since it's happening on two phones (the T48G and T48S), it does in fact point to something on the VoIP provider side, tied to the second account. I will continue scouring those settings and report any results.
09-10-2020 02:07 AM
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RE: Backlight lights up based on SIP session expire - CFortC - 09-10-2020 02:07 AM

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