U1960 no voice local call

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Released on : 2018-3-14 15:16:14   Latest reply:2018-04-17 20:04:00
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zaytdinovaee    

Hi, community
I have a problem with U1960.
Conditions:
1. dual port mode: ETH0 ( for control & SIP trunk to provider), ETH1 (for local sip phones eSpace1910)
2. subscriber status are "registered" on eSpace1910 phone and on U1960
3. voice codecs on phones - ОК (G711A/U, G.729, G.722),
Problem:
local call beetween users with ring, but no voice for both users.
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Go to the specified floor
gululu  Admin   Released on 2018-3-14 18:28:57 Helpful(0) Helpful(0)

hi,please waiting for help
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Come on!
fighting  Moderator   Released on 2018-3-14 18:30:59 Helpful(0) Helpful(0)

please check network is reachable or not between two phones.
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zaytdinovaee     Released on 2018-3-15 14:49:14 Helpful(0) Helpful(0)

1. ping test phone-to phone OK
2. phones are ringing
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emad  Moderator   Released on 2018-3-23 06:12:00 Helpful(1) Helpful(1)

this is NAT problem , There is no RTP between the IP Phones .
1-You can confirm by enabling the port mirroring on the IP Phone and capture the data using wire shark [check the attachment for the how to capture the data using the IP phone] .



2-For test , Try to configure the 2 IP phone with an IP address in the same subnet of the IPPBX and test the call [it will be ok ] .
If the IP phones are in a remote site , so it's better to add a SBC to your network .

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Historian  Novice   Released on 2018-4-9 09:16:13 Helpful(0) Helpful(0)

U19 does not support dual gateway (service)
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AalyY  Adept   Released on 2018-4-17 20:04:00 Helpful(0) Helpful(0)

U19 support dual-network-port mode on the control board of the unified gateway,

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Historian Released on 2018-4-19 09:00
The dual-network-port mode specifies one area for service, one area for management. 
AalyY
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