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Group 300 can't call and receive


Group 300 can't call and receive

Hi everyone,

First, sorry for me English (French) ^^

I have a problem with my Polycom 300 group.

I installed it but I can't call and receive.

My options :

IPv4 : It's ok (I found an update for my sytem but the sytem ask me a key, How can I have this key ?)

H.323 : option activated, but in "Registration Status", I have "Registration Failed" / On use Gatekeeper, I selected "auto"

SIP : It's activated and all options are in "auto" / same thing, I have "Registration Failed"

When I try to call someone, I have "The call could not be completed. Please check the Gatekeeper settings and try again"

Can you help me ? I don't know how to fix my issue. (You can see my different parameters on my attachments)

Thank you


Re: Group 300 can't call and receive

News : If I disable SIP and Use gatekeeper options. When I call, I have "Call end" but always nothing.


I think that I must to enter something in SIP configuration but I have nothing about this..

Message 2 of 4
Occasional Visitor

Re: Group 300 can't call and receive

Trying to get through the same issue.

Please let me know if there is any update, you have received from Polycom


Message 3 of 4
Polycom Employee & Community Manager

Re: Group 300 can't call and receive

Hello all,

welcome to the Polycom Community.

The community's Video FAQ contains this post here:

  • Jun 21,2014 Question: Are there specific Ports in my firewall that I need to open in order to utilize video conferencing?

    Answer: Please check the relevant release notes or admin guide for your device under the section “Inbound and Outbound Ports” or "Port usage" => here <=.

    In addition check this FAQ post => here <= for more details and troubleshooting suggestions.

  • Jun 21,2014 Question: What could be causing one way video or one way audio when utilizing video conferencing?

    Answer: Please check the relevant release notes or admin guide for your device under the section “Inbound and Outbound Ports” or "Port usage" => here <= in order to open the relevant firewall ports.

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

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 4 of 4