I really hope you guys can help.
We have purchased 3 SIP 941 telephones with exactly the same 2 SIP providers configurations using 2 lines.
One phone is working perfectly (incoming with one SIP provider and outgoing calls with another SIP provider). It has a good internet connection (>8Mb)
The 2nd phone can call out but I cannot hear the person on the other side. The called person can hear me. I can see on the screen "called party ringing" but I cannot hear it ringing. BUT if I leave the handset on the phone and use the loud speaker I can hear the ringing tone and I can hear the other person.
The 3rd phone can call out and it works fine. But when called in I cannot hear the caller. The caller can hear me..
So my question is: it looks like its not s SIP/Software configuration problem but more a telephone/hardware probleme.
Would it be possible that a low internet bandwith cause this problem (the 2 last phones are working with < 2 Mb of download) ?
We have installed the latest firmware 5.1.8.
Many thanks to anyone who will answer and help on this.