Calls go silent, but don't drop

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edrico:
This has been happening to me for a long time, stopped for a while, but now the problem is back again. I have tried two different obihai 100's, and two different providers (google voice and phone power). The problem happens in all configurations.

I will be on a call for some amount of time, and then all of a sudden, the phone just goes silent. The connection doesn't drop, but the call is dead.

I've searched and haven't found any answers. I even ordered an Ooma the other day b/c i'm so fed up. I use this phone for work, so i need reliability. 

I'm posting here to see if anyone else has had the same issue or if there's any debug info that can be gathered. Even if i do switch to Ooma, i still want to know what the heck was going on.

OzarkEdge:
Some vague ideas:

o  try a different router.
o  try a different phone.
o  can Phonepower Support suggest anything?
o  are there any max call time limits set?
o  is your modem/router/OBi on a UPS?

Sorry, that's not much help.

OE

kgjulie:
I'm having the same issue with an Obi 202.

Using PhonePower, I had calls on two consecutive days go silent as follows:

Day 1: Silent at 110m, at 64m, at 16m (the last 2 after callbacks to the conference line)
Day 1: Silent at 110m, at 48m, at 7m (the last 2 after callbacks to the conference line)

Using GV, I had a call today that went silent at 14m.

The only thing that has changed in the past year(?) with my equipment is that Comcast sent a letter a while back saying my internet speed was being upgraded to 75Mbps. I rebooted my modem and it was supposed to take effect.

I spoke with PhonePower last week and their troubleshooting consisted of "reboot everything, and call us back if you still have trouble."

Any ideas (other than those stated above)? I'm inclined to think it's not the router since it has worked fine for a long time with the same router. I could try a different phone.

Any settings I can check?
Thanks.

drgeoff:
@kgjulie
If you are using a battery powered handset (eg DECT) I suggest trying a new set of rechargeables in it.  (Or test with a wired phone.)

kgjulie:
Thank you for the battery suggestion. I placed new batteries in both handsets -- the one connected to PhonePower and the one connected to GV.  Today on my conference call, the PhonePower call dropped at 63m and after I called back, again at 48m. I called back again with the GV handset and had no real issues (two times with GV the client said they couldn't hear me, but I could still hear them. I assume I had just covered up the handset mic and the call continued on).

I did learn something important though: Although on my end the call just goes silent and doesn't disconnect to a dial tone, apparently the call does actually disconnect. I learned this when my conference call participants on the other end of the line told me that they knew the phone died because the conference service broadcast a message saying they were the only participant left on the call. This might indicate a different issue than just going silent.

In addition to changing to new batteries in both handsets, I replaced the CAT-5 cable between the modem and the router, updated the OBI firmware, and made sure (again) everything was fully plugged in and not too close together.

Since the spontaneous call drops have happened with both PhonePower and GV (although the problem today was with PP only), should I assume the problem is with the Obi?  I'm getting desperate to fix this issue since I have these calls 2-3 times per week for the next several weeks, and they last 4 hours each. I have another call with this same client on Monday. I can't have the calls keep dropping over and over and over...

I welcome any suggestions. Thanks.

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