Using HG659 for Voip only behind Cisco 897

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Flow

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#247959 5-Mar-2019 09:19

Hi all I need to keep my Cisco as my edge device for compliance reasons so the HG659 will need to sit south of the C897.

Internet connectivity for the HG659 is via a LAN port on the Cisco to the WAN port on the HG659 configured for an Ethernet routed IP connection with a static IP configured in the Cisco's LAN. This is tested and working fine.

Will I need to change the Voip provider details in the Telephony section in the HG659 now that I am behind double NAT, for example configuring the outbound server?

Do we think I will need to create NAT bypass rules for ports 5060 and 6050 on the Cisco?

Has anyone had success with this?

Many thanks in advance

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sbiddle

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#2194437 9-Mar-2019 13:02

You're don't have a double NAT situation so there shouldn't be any issues - the VoIP stack binds itself to the WAN interface of the HG659b not the LAN interface.

Flow

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Geek
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#2216681 13-Apr-2019 21:50

So voip from the HG659 behind a Cisco router firewall worked without a hitch. Forwarded 5060 and seeing hits on that so that is all you need by the looks! Thanks for the pointers folks.