Mitel 3300 with remote site ip phone 5224

[scotty88]

Hi Guys

Looking for some help from you gurus out there. I have a Mitel 5224 phone on a remote site with it being routed back to the 3300. 3300 can see and ping the phone, I can call the phone and be called but cannot hear any audio either way. I have forwarded all ports etc but cannot figure out why I have no audio. Could anyone help out? Thanks in advance!

 

[wireman50]

Usually a ports not open problem compounded by SIP-alg on the router if you are not using a MBG.

 

[scotty88]

I have the following ports open and and also SIP-ALG disabled on the router.

TCP 3998-3999 3998-3999
TCP 4000 4000
TCP 44000 44000
UDP 5004-5007 5004-5007
UDP 5060 5060
TCP 5566 5566
UDP 5567 5567
TCP 5570 5570
UDP 6004-7039 6004-7039
TCP 6800-6802 6800-6802
UDP 20001 20001
UDP 50098-50508 50098-50508

 

[kwbMitel]

The phones need to be able to talk peer to peer. It is not enough that they can ping the controller. They must be able to route and ping each other.

**********************************************
What's most important is that you realise ... There is no spoon.

 

[wireman50]

Usually a ports not open problem compounded by SIP-alg on the router if you are not using a MBG."

Both ends of the link? Is it a VPN?

 

[scotty88]

Yeah both ends are linking together and no it's not a VPN

 

[wireman50]

I meant are the ports open at both ends of the link? How are they linked then (for the phone?)

 

[Lundah]

Expand your last range of ports to UDP 50000-50511

 

[RAMitel]

Are you using a MBG?

You also need to check the ports you have listed as some of these ports are for the Mitel 5000 not the 3300. You need to consult the engineering guidelines for the MBG, at the back is a complete list of ports required.

If you are using a MBG server you need to set the number of UDP ports that start at 20000 to a maximum number (think its 20000-31000 by default off the top of my head)these are for inbound traffic.

 

[scotty88]

I have extended the ports 50000-50511 but has made no difference.
I have also opened the ports stated in the Mitel guide. I am also not using MBG
SIP_ALG has been disabled on both ends too.

Wireman50 the are linked by 2 fixed ip addresses and port forwarded.

 

[kwbMitel]

Have you tried pinging from phone to phone?

Troubleshooting ports is useless if you don't have the proper routing.

As I said earlier, pinging the controller is not enough.

**********************************************
What's most important is that you realise ... There is no spoon.

 

[sarond]

As far as I know your method will not work.
As kwbMitel mentions, the calls from phone to phone are peer to peer.
So although the phone can signal each other to make the call as this is done by the controller, the audio will need to stream from Phone to Phone.

So to confirm what kwbMitel is saying, the phones need to be able to route to each other directly with no NAT, no Port Forwarding.

 

[scotty88]

Ah ok! I thought it was easy as forwarding ports etc and it would have worked.

 

[wireman50]

Whack up a vpn for the phone. Or go for a mbg they are not that expensive.

 

[scotty88]

Ok will go and try setting up a VPN, Any recommendations?

 

[wireman50]

Sorry no, If you have a router specific one that would probably be best.