Savi 8200 Office Series - no sound when calling with IP Phone

[MaddinusPrimus]

Hey hey people,

I'm slowly losing my mind with that headset.

The sound coming through when calling via an IP phone was blown out like no tommorow, it hurt the ears.

After testing with different audio inputs (cabled PC, Mobile via BT) I narrowed it down to a faulty EHS cable.
Here's where the weirdness starts:
The new cable came a few days ago, the headset was standing around unconnected for about a week and now there is just static sound when using the IP phone. All the other connections not involving the EHS cable are working well.

Both the new and the old EHS cables display the same behavior.

The headset is not completely quiet as I said and I can control the phone using the headset buttons so there is some kind of connection there.

Tried all channels A through G with no avail, tried repairing the headset and the base multiple times, tried restoring factory setting like 10 times now and nothing helps.

The IP phone I'm using is the Unify Openstage 40 HFA.

Did anyone encounter such behavior or does anyone know any weird black magic that could be of help here?

Thanks y'all for your time 

MaddinusPrimus

[M_Salman]

Hi @MaddinusPrimus, Welcome to the Poly HP Support Community.  
 
Thank you for the detailed explanation--I completely understand how challenging this must be, especially after trying multiple troubleshooting steps. You've already done a great job narrowing the issue down, which is really helpful.

Based on what you’ve described, and considering the headset functions normally with other devices but produces static or distorted audio when connected via EHS to your Unify OpenStage 40 HFA, this could indicate a compatibility or configuration issue between the headset and the phone system.

Firmware Compatibility

The Poly Savi 8200 series requires specific minimum firmware versions of the Unify HiPath system to function correctly over EHS:

1. HiPath 2000 → Version 2.0 or higher
2. HiPath 3000 → Version 7.0 or higher
3. HiPath 4000 → Version 4.0 Release 1 or higher

If your system is running below these versions, EHS features — particularly audio routing — may not function properly, which could explain the distortion issues even when using a new cable.
 

Next Steps

1. Verify System Version:
   Confirm with your telecom or IT administrator that the HiPath system is updated to at least the minimum supported version required by the Savi 8200 series.
2. Check Cable Compatibility:
   Ensure the EHS cable model you are using is fully compatible with both the Poly Savi 8200 headset and the Unify OpenStage 40 HFA. Use only officially supported EHS cables.
3. Headset Configuration:
   Confirm the correct settings on the Savi base. Based on Poly’s compatibility guidelines, configure the base as follows: 
   Channel: A, 
   Microphone Level: 3, 
   Speaker Level: 2
4. Reconnect EHS Cable: 
   Unplug the EHS cable from both the Savi base and the headset port on the phone.
   Reconnect the cable firmly, ensuring it is fully inserted at both ends.
5. Device Placement: 
   Maintain at least 6 inches (15 cm) of space between the Savi base and the telephone. 
   Position the devices as far apart as the EHS cable length allows to minimize potential interference.
6. Desk Phone Volume Adjustment: 
   Lower the desk phone’s volume to determine whether it impacts the static or distortion.
7. Power Supply Check:
   Ensure the Savi base power adapter is plugged directly into a wall outlet, not a power strip or surge protector.
   (Note: While this is less likely the root cause, since the TIC cable setup works correctly, it's still worth confirming.)
8. Test with an Alternate Desk Phone (if available):
   If possible, connect the same headset and EHS cable setup to a different compatible desk phone to isolate whether the issue lies with the original phone.
9. Use the Poly Compatibility Guide:
   Double-check your phone model and headset combination using the official tool: Compatibility Guide | Plantronics

If the issue still persists, I would request you contact our HP Support, and our support engineers should be able to sort this out. HP Support can be reached by clicking on the following link.

https://support.hp.com/us-en/poly

I hope this helps! Keep me posted for further assistance. If you find the information provided useful or if it solves your problems, help other users find the solution more easily by giving Kudos/Thumbs Up and marking my post as an Accepted Solution.

Regards,

Salman