Using iPhone Pro for VOIP for remote users but without using a VPN

[bargibargi]

Hi,

We'd like to have people start using the iPhone Pro/Softphone from remote locations but without needing to use a VPN client.

I'm aware we're going to need to map some ports from our firewall (Netscreen 25). Can someone point me towards any documents on the recommended way of setting this up?

With sharing it out to the net, are there any other precutions we can take to lock out anyone trying to hack the unit?

Cheers

Ray

 

[big70]

Many tried, not heard anyone that had it working.
I did it with Coral tadicom and it works, but we use a Sentinel Sesion Border Controler and this is what is does.

Terminal Overload
Remote NAT (Network Address Translation) devices can overload numerous
IP terminals on the same IP address with unique ports. Coral versions 14.x require
each IP terminal to have a unique IP address (using port 2427 or 2727).
The Coral Sentinel bypasses this issue by acting as a proxy for the remote IP terminals,
thus presenting them to the Coral on unique IP addresses.
Unique Sockets
Remote NAT devices assign a unique socket to every RTP session upon setup. The
Coral (or any other Call Agent) is unable to set up a session without knowing which
port the NAT will assign.
To address this, the Coral Sentinel acts as a meeting point. The IP terminals direct their
RTP streams towards the Coral Sentinel, which detects the source socket, adjusting the
destination of the RTP streams it transmits accordingly.


Greets Peter

 

[JeSTeROCK]

If the IP Office could label packets with an internal and external address then PAT could be used. Samsung use this and works well.

 

[bakeacake]

Big70

I am currently trying to do this with a Coral Sentinel Endpoint.

I am having no luck.

Any pointers?

Cheers

 

[big70]

Is it al Coral that you are using or are you trying to use the sentinel for Avaya.
We only got it to work with Coral products.

Greets Peter

 

[bakeacake]

Sentinel for Coral ( I think we have one of the only few in the world)

Actully I have it working, well it was.

No voice coming back, like the direct media path problem with the avaya.

Thanks anyway

 

[bargibargi]

Hi guys,

I've never heard of this Coral software. I was assuming all I would need to do is map an IP to the IP Office unit and off it would go. What I was after was knowing what ports should be opened. Also is this a major security risk and if there's anything that can be done to reduce/prevent people trying to hack/take advantage of the unit.

Cheers

Ray

 

[big70]

This is not software its a piece of hardware.

http://www.tadiranamerica.com/html/products/ip_telephony_sentinel.html

Greets Peter