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neoof86

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Hi All,

I was wondering how people have got on with phones registering outside of the Kerio operators local network. I have followed the KB article "configuring-nat-821.html"

I have managed to get iPhone and Android softphone registering and somewhat calling fine but for the life of me I can not get a Cisco 7941 to register outside of my network. I have loaded a manual SIP configuration onto this and it appears to register fine when inside my network. I have then set this to my public IP and connected this to another ISP but the phone fails to register. Mad

I know the user account is ok as I have used it on the iPhone. Does the phone need to automatically provision first rather than manually and going to my own tftp server for the config?

Are there any more ports I need to get this working.

I want to show my boss this working so we can ditch our CCM box when we move office. Are polycoms easier to register or is this all down to ports not being open. Sad

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neoof86

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Sorry for this being in the wrong forum, each time I try to post in the other the system crashes out
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Vicky Tripp (Kerio)

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Hi Gareth,

I have now moved this post into the Operator forums for you. In regards to your issue have you checked the option in Operator that the phone is behind NAT? If you go to WebAdmin->Configuration->Extensions->Edit the extension->Advanced and tick the box 'Extension is behind NAT?

Also you will need to make sure that the the ports:

TCP+UDP/5060
TCP/5061

Are open on the firewall/router on the external phones end.

I hope this helps,
Vicky

Vicky Tripp
Kerio Technical Support Engineer
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Brian Carmichael (Kerio)

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The Cisco 79XX phones are difficult to work with, especially outside the network. The easiest phones to work with based on my experience (especially for remote provisioning) are the Cisco/Linksys SPA series. Regarding Polycoms, they have a fairly limited web interface, and I find that their default network settings require adjustments when connected remotely.

Brian Carmichael
Senior Technical Marketing Engineer | Kerio
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neoof86

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Hi Vicky & Brian,

I am going to try starting up another server at the weekend to retest all off this.

Vikcy at the time I did have the profile set to NAT as I tested this on a iPhone prior to proceeding but maybe I still missed a port somehow

Brian I will take a look into those handsets, its just a shame as I have quite a few 79XX handsets lying around. Maybe I just have to get them all the VPN in somehow.

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Filip Jenicek (Kerio)

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HI,

from my experience the Cisco 79xx series can't work behind a NAT, I'd recommend you to connect the phones over a VPN.

Filip
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