N720IP and Cordless phones problem

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Josip84
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N720IP and Cordless phones problem

#1 Beitrag von Josip84 » 19. Jan 2018 08:28

Dear all,

We had installed VoIP in our facility. There are 4x N720IP PRO and 1x N720DM. We also have 10x cordless phones Siemens C530A GO and 2x S650H PRO and 2x YEALINK T27G fixed phones. We have our PBX on Centos.
After installing everything we tried to make some phone calls but there are some problems and we don't know what is wrong.

Here are the problems:

1. Sometimes we cannot make phone calls between cordless phones and if phone call is made we can speak about 10-15 seconds and then one side does not hear other side and vice versa. This happens even we are few meters dinstanced from base station and two users are also seperated around few meters from each other.

2. Calls between fixed phones are excellet. There are no any interruptions but if we make call from fixed phone (YEALINK) to cordless phone, the cordless phone can hear very well voice from fixed phone but if I speak on cordless phone to fixed phone there are interruptions. The other side can't hear anything or hear something but with interruptions. Interruption means - clear voice speak and then mute, after some time again clear voice speak for few secoonds and than again mute.

The base stations are mounted on walls at 2.5m from ground.

Any advice or hint will be will be very appreciated because we have no more any ideas what to check and what is wrong.

Thanks in advance!

MuP
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N720IP and Cordless phones problem

#2 Beitrag von MuP » 19. Jan 2018 15:09

Reduce your setup to PRO eqipment only.
Switch off 3 of 4 720IP.
Then try again by using 2x S650H PRO.

N720 devices are setup to current available fimware all together?

Are you familiar with setting up a syslog server?

Good luck.
1u1/DSL +++ VDSL2.17A.ITU.G.993.2/BC177.140
F!B7580/153.06.92/DSL1.148.136.11 +++ F!R1750E/134.06.93
N510IP/42.247 +++ 5xSL750H/116.074.04/CT1805

Firmware N510IP A510IP C430IP C530IP C590IP C595IP C610IP N300IP GOBox100

Josip84
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N720IP and Cordless phones problem

#3 Beitrag von Josip84 » 19. Jan 2018 22:30

MuP hat geschrieben:
19. Jan 2018 15:09
Reduce your setup to PRO eqipment only.
Switch off 3 of 4 720IP.
Then try again by using 2x S650H PRO.

N720 devices are setup to current available fimware all together?

Are you familiar with setting up a syslog server?

Good luck.
Thank you for replay.

We had already tried that just as we bought additional two cordless S650PRO but the problem was the same.
Current firmware is 108.

I'm not familiar with setting up syslog srv. but i'll try to set it up with it will gave me some usefull informations...

MuP
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N720IP and Cordless phones problem

#4 Beitrag von MuP » 19. Jan 2018 22:58

try the most current firmware v110 first before continue operating any tests.
check also your handsets for possible firmware update.
firmware-n720-dect-manager-pro-n720-ip- ... tation-104
1u1/DSL +++ VDSL2.17A.ITU.G.993.2/BC177.140
F!B7580/153.06.92/DSL1.148.136.11 +++ F!R1750E/134.06.93
N510IP/42.247 +++ 5xSL750H/116.074.04/CT1805

Firmware N510IP A510IP C430IP C530IP C590IP C595IP C610IP N300IP GOBox100

Josip84
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N720IP and Cordless phones problem

#5 Beitrag von Josip84 » 8. Feb 2018 10:32

Hello

I've made upgrade to new firmware and even change old switch (DLINK) to new one (HP) but problem is still present.

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