Hey Folks,

Is there a trick to getting an IP phone to connect both inside the office and from outside?
We have two MIPU, one on the internal network and one with a dedicated public IP.

Is it as simple as having the phone register to the MIPU with the public IP?

Cheers,

-B

Always registering to the external IP would be the simplest way. I don't remember if Toshiba phones accept a domain name rather than IP, but if so - the best way would be to use split DNS where the domain name resolves to the internal IP when on the LAN, and the external IP anywhere else.

Only IP addresses in the Toshiba IP phones. No DNS, domain names.
You can set 2 IP addresses in a phone, the primary and the secondary. What I have done is set the internal IP address to the primary, and the secondary IP address as the public WAN. When it fails on the primary, it will try the secondary IP address.

As mentioned, you can also just use the public WAN IP address for internal IP phones in most cases.

Further question,

A system has an internal MIPU and one with a public address.
Phones registering on the internal address seem to have to have the PDN equipment number set to the one of the internal MIPU and then when they are outside the network, the primary ipu address(internal) fails and but the secondary (public on the 2nd mipu) using the public address of the second MIPU come back with a resource full error.

If I change the pdn equipment number to that of the 2nd mipu card, then the phone registers.

Is there no way configure the phone so it can connect via the internal mipu when it is in the office and the external mipu when it is outside without having to constantly change the settings in emanager?

Using the external address when in the office seems like unnecessary hops and potential for poorer call quality.

Set the equipment number to 0000 for IP phones to allow it to connect to either MIPU.

@newtechy

That's awesome! Did I miss that somewhere in a manual?

-W

I am sure it was there somewhere, or in the eManager help text.