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Realpres Desktop SIP connectivity issue, possible bug

Occasional Visitor

Realpres Desktop SIP connectivity issue, possible bug

I think I may have found a bug/issue.

Please let me know if there is a better way to report this.

- Polycom RealPresence Desktop for Windows (


An issue appears under the following circumstances:

- H323 disabled

- SIP enabled

- NAT option enabled, TCP transport enabled.

With this set of options, we often see an issue which appears to be

a buffer wrap-around bug possibly.

RPD will often send out a malformed INVITE for us under these settings.

(middle of SDP is transmitted first, with 'INVITE' mid-message)


Pcap example:


Is there a better way to report this?


Cameron Elliott


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Polycom Employee & Community Manager

Re: Realpres Desktop SIP connectivity issue, possible bug

Hello @Cameron21 ,


welcome to the Poly Community.

In order to raise a support ticket, you need to work with your Poly reseller as they need to do this for you.

End Customers are unable to open a ticket directly with Poly support.

If the unit is no longer within the warranty please be prepared to Pay Per Incident / PPI. This is all outlined in detail here

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

Best Regards

Steffen Baier

The title Polycom Employee & Community Manager is a community setting and does not reflect my role. I am just a simple volunteer in the community like everybody else. My official "day" Job is 3rd Level support at Poly but I am unable to provide official support via the community.


Notice: This community forum is not an official Poly support resource, thus responses from Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge. If you need immediate and/or official assistance please open a service ticket through your proper support channels.
Please also ensure you always check the VoIP , Video Endpoint , Skype for Business , PSTN or RPM FAQ's
Message 2 of 2