IPO 9.0.12 Extension error when logging in Remote Worker 2

[MightyMrMatt]

Client has a PBX at their call center and wants to use remote workers at other sites over site-to-site VPNs. I've set up a test extension to try this out this set up, but after programming the phone to the call center PBX, after entering the extension and password, I get "Extension Error". Now, these sites do have a local PBX, but since the phone is programmed to look for a different call server, I assume that it should go around the local PBX in search of the call center PBX. Am I correct in this or am I missing something?

 

[critchey]

If you have a VPN then you are not a remote worker. Remote worker implies you are connecting over the public internet to a public IP address. Remote worker will not work if you are on the local network. If you have the phones setup as remote worker that may be the problem right there. If you have a site to site VPN you setup the phone the exact same way you would as if the phone was onsite just enter the call server and http/https/file server as the local IP of the control unit you want to connect to.

The truth is just an excuse for lack of imagination.

 

[MightyMrMatt]

I tried that initially, but it doesn't work either. It also gives me the "Extension Error" message.

 

[critchey]

Oh wow sorry missed the extension error.

What kind of phone are you trying to use to test this with? What kind of extension have you created?

The truth is just an excuse for lack of imagination.

 

[MightyMrMatt]

It's a 5610. The test extension is set up as a basic user H323 extension.

 

[critchey]

Well extension error means the PBX does not recognize the extension. Verify that your phone is pointing at the control unit you made the extension on and the not the local side PBX. Verify that the extension is correct and user is correct.

The truth is just an excuse for lack of imagination.

 

[MightyMrMatt]

It seems like the phone is not looking at the right call server. Even though it has the call center PBX in its settings, it is still routing to the local PBX. If I enter an extension from the local PBX, it comes up fine. Is there something that forces phones to override the settings and point to the local PBX?

 

[joe2938]

when it starts to come up hit the * key then manually static the correct call server address and then let dhcp do the rest

 

[MightyMrMatt]

Joe,

The call server IP is statically assigned using the '* to program' option. In fact, when rebooting the phone, the address is still there, but when you enter a local PBX extension, it show the local PBX as the call server.

 

[critchey]

As joe2938 stated confirm you have the IP for the PBX you want to connect to statically assigned in the call server address in the phone. If the local PBX is handling DHCP I would statically assign everything on the phone so it does not DHCP just in case the local PBX DHCP is overriding the values once DHCP'ed.

The truth is just an excuse for lack of imagination.

 

[joe2938]

good point @critchey, it does seem something is over riding your dhcp settings

 

[Pepp77]

yeah we get that in house as well, if I set the call server DHCP just changes it to what is in the DHCP options, statically assigning everything is the only way to assign a phone to a different IPO on my in house network.

| ACSS SME |

 

[MightyMrMatt]

I've statically assigned everything on the phone except the IP address as the DHCP is handled by the router and not the PBX. However, the values are still being overwritten.

 

[Pepp77]

Statically assign everything your DHCP options appear to be overriding like mine does.

| ACSS SME |

 

[critchey]

Ya you need to statically assign everything including the IP address. It seems like if it DHCPs anything it overrides everything.

The truth is just an excuse for lack of imagination.

 

[MightyMrMatt]

Okay, grabbed an unused IP address off of the local network and programmed it as the phone's IP addy. Now I am getting "Discover 10.127.30.19" which is the call center PBX I am trying to access. The VPN is wide open and I can ping everything both ways. I don't see anything blocking traffic between sites. Am I missing something else?

 

[critchey]

You have an IP route on the remote side to the VPN router on the remote side? Can you access manager on the remote control unit from the side with the phone?

The truth is just an excuse for lack of imagination.

 

[MightyMrMatt]

Yes, IP route is set up. The remote PBX can ping all addresses in the local range. I can access Manager on the remote unit form the local network.

 

[critchey]

Did you use the IP address for the local VPN router as the gateway address for the phone?

The truth is just an excuse for lack of imagination.

 

[MightyMrMatt]

That might be the problem. I used the local network router and not the VPN.