Incoming VOIP calls dropped on the TL-R470T+

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Incoming VOIP calls dropped on the TL-R470T+

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Incoming VOIP calls dropped on the TL-R470T+
Incoming VOIP calls dropped on the TL-R470T+
2014-07-25 20:33:56 - last edited 2021-08-21 05:37:53
Region : Australia

Model : TL-R470T+

Hardware Version : V7

Firmware Version : 5.1.3

ISP :


Hello TP-Link Forum,

I'm still seeking assistance on the following issue, can someone please shine some light?


Hardware version - v3.0
firmware 5.1.3 build 20130831

Topology
Fixed Wireless NBN - DevoteNBN - VOIP - byo.engin
TP-LINK Load Balance
DLink DGS-1100-08P Switch.
Yealink W52P SIP VOIP phone.



PROBLEM IS COMMUNICATION DROP WITH INCOMING CALLS ONLY..


Above is a brief listing of hardware on the network. All devices behind the TL-R470 are NOT relevant to the issue. I have patched the SIP phone directly to the TL-R470T+.
Outgoing calls are not a problem but incoming calls are dropped after 1 minute and approx 5 or 6 seconds. It would appear that the router is seeing the incoming packets as an attack. I have tested this theory by installing another gateway and having no problems, no call drops in or out.
I'm not sure that I have added the correct rule to allow incoming voip on the network. I have made few configuration changes but have defaulted them all as they do not appear to produce a fix.
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Re:Incoming VOIP calls dropped on the TL-R470T+
2014-07-26 11:13:37 - last edited 2021-08-21 05:37:53
Maybe you can share the screenshot of the setting related to this ?
so the support can look at it
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Re:Incoming VOIP calls dropped on the TL-R470T+
2014-07-30 20:01:36 - last edited 2021-08-21 05:37:53

Utomo wrote

Maybe you can share the screenshot of the setting related to this ?
so the support can look at it



Well I contacted support with the same info and also including the following, the only reply I received was 4-5 days later to say they would close the case?????
I responded once again on the 28th but still no reply.
There are two many configuration options to show screen shots. I'm looking for a support tech who knows the TL-R470+ interface and can provide some support.

I have attempted the following:

Disabled ARP spoofing
Disabled all Attack Defence options - Flood Defence, Packet Anomaly Defence.
Disabled all ALG options under NAT
Created an Access Control rule to allow UDP on ports 5000-6000 and added the Yealink IP.
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Re:Incoming VOIP calls dropped on the TL-R470T+
2016-01-29 22:56:06 - last edited 2021-08-21 05:37:53
tas7330,
Did you manage to solve this?
I am having incoming VOIP issues as well and wondered what process you worked through
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