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I am having problem with my voip that drops calls after a few minutes of conversation.  My service provider, magicJack, asked me to open my 5060 and 5070 on my G36 to improve the quality of the voip service.  Can anybody tell me if I can do it myself with the modem admin tool or does it have to be Comcast that can open these ports for me?   I own my modem.

Hello jacknife1956,

Well, we can understand that you would like to do Port Forwarding which is possible by logging in(modem admin)which is the web manager page . 

Please follow the below instructions for Port Forwarding : 

http://arris.force.com/consumers/articles/General_FAQs/G34-G36-Port-Forwarding-Setup

Also, kindly note your ISP (Comcast) wont be able to do the Port Forwarding . 

Do let us know if you have any more queries . 

 

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