Soundstation 2 conference with Siemens HiPath 3800, possible?

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Soundstation 2 conference with Siemens HiPath 3800, possible?



We have a HiPath 3800 system with a Soundstation 2 and when we try to connect caller 1 it works, then hit the conference button and it puts caller 1 on hold, then dial caller 2 who can pick up then when we hit 'Join' it disconnects caller 1 completely and brings in caller 2. 


We've tried *3 as I read that can work for joining the second call but with no luck. I've read the basic guides on the site (


This seems to be an issue with the PABX then? Does anyone have any experience or tricks to try or is this just not possible?

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Polycom Employee & Community Manager

Re: Soundstation 2 conference with Siemens HiPath 3800, possible?

Hello @CW431,

welcome to the Polycom Community.

You need to ensure to change the Flash Timing. Usually for a HiPath in Germany this is 80ms


Menu => Admin Setup => Phone System => Flash Timing


I think we offer 75ms which should work

Please ensure to provide some feedback if this reply has helped you so other users can profit from your experience.

Best Regards

Steffen Baier

Polycom Global Services

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