KX-TDE100 VOIP on-way audio 1

[baddies]

Having troubles with a KX-TDE100 and one-way VOIP audio (using NT-343 phones). The Customer has a different IT vendor and are using Netgear switches. If we plug one of the phones in to a 8-port POE switch directly to the IP port (for testing), calls work correctly. When we plug their switch back in, the one-way audio issue reappears.

IT Vendor is stating QOS and VLANs are disabled.

The PBX IP on the Phones are pointing to the MPR card.

 

[obtsystems]

check the dsp ip is ok and not clashing. ping from any other machine on the network to both ip addresses, if they both reply plug out the network cable and test again, if the dsp ip is also on something else it will reply.

this could cause one way speach on the ip phones

 

[baddies]

When their technician disconnected the LAN port, he was still able to ping both IP's (MPR and DSP). We have LAN plugged into their Main switch (for the IP phones), then the MGMT port connected to the 8-port POE switch (which has a KX-TVA50 and connected back into their Main switch for management access).

When he disconnected the LAN, he was still able to ping the MPR and DSP addresses. He is going to verify nothing else is using the two IP's and verify we aren't creating any kind of switching loop with this setup.

 

[baddies]

May have found the issue, the IP's the tech programmed were within the DHCP scope. I am waiting to gather new IP's from their IT vendor.

 

[baddies]

Voila, issue is resolved. MPR/DSP IP's were within the DHCP scope. Acquired new ones and I have two way audio.