See Event Info below. I changed my pcname and domain name in the event info
- but it is using the correct pc/domain name, and it is trying to connect to
the right server name/ip and the right port number.

This works fine on my pc at the office Windows XP Pro, but at home I have a
router-to-router vpn connection and Windows Vista Business and it never will
work.

I don't know what else to try except to make sure it is using the right host
names and port numbers.

-Barry ... Event info follows:

Log Name: Application
Source: Communicator
Date: 4/5/2009 12:17:28 AM
Event ID: 7
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: Mypcnam.mydomain.com
Description:
Communicator failed to connect to server ocs01.mydomain.com (131.192.176.20)
on port 5061 due to error 10060. The server is not listening on the port in
question, the service is not running on this machine, the service is not
responsive, or network connectivity doesn't exist.

Resolution:
Please make sure that your workstation has network connectivity. If you
are using manual configuration, please double-check the configuration. The
network administrator should make sure that the service is running on port
5061 on server ocs01.mydomain.com (131.192.176.20).
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"
<System
<Provider Name="Communicator" /
<EventID Qualifiers="49392"7</EventID
<Level2</Level
<Task0</Task
<Keywords0x80000000000000</Keywords
<TimeCreated SystemTime="2009-04-05T05:17:28.000Z" /
<EventRecordID633818</EventRecordID
<ChannelApplication</Channel
<Computermypc.mydomain.com</Computer
<Security /
</System
<EventData
<DataCommunicator</Data
<Dataocs01.mydomain.com</Data
<Data131.192.176.20</Data
<Data5061</Data
<Data10060</Data
</EventData
</Event