PIC enabled OCS/LCS users cannot IM with Live enabled accounts.

November 21, 2007

in Microsoft, OCS

For some background on PIC (Public IM Connectivity) please reference the following link.

Issue:

Why can’t I IM with a MSN enabled account? (IE: user@company.com vs user@msn.com)
 

Background:

Microsoft allows MSN users to use the domain name of their choice to create an IM address through Windows Live ID.

Let’s examine the following scenario:

  1. Joe has a MSN enabled account (joe@company.com) and uses this account to sign into MSN Messenger.
  2. Mary has a MSN account (mary@msn.com) and uses this account to sign into MSN Messenger.
  3. John has Hotmail account (john@hotmail.com) and uses this account to sign into MSN Messenger.

A PIC enabled account can add all three contacts to their contact list however, the user is only able to IM with the Mary and John.  Joe shows up as unknown.  The user cannot send nor receive IM conversations with Joe. 
 

Solution:

Add the contact as “Joe(company.com)@msn.com”.  
 

Reference:

Excerpt from Microsoft KB Article 897567

“As of October 11, 2005, all EASI Windows Live ID domains are fully supported for the Public IM Connectivity (PIC) service. This means that Communicator users can communicate with MSN users by using EASI Windows Live IDs through PIC.
EASI ID enables MSN users to use the domain name of their choice to create an IM address through Windows Live ID. For example, a user’s EASI Windows Live ID could have been username@contoso.com.

This was a great service for MSN users. However, the service caused problems when PIC-enabled users tried to communicate with MSN users by using Communicator.
With the change on October 11, 2005, you can use the EASI Windows Live ID with PIC by making a simple change when you add a user to your Communicator contact list. A Communicator user who wants to add the EASI Windows Live ID of username@contoso.com would add the following address to the search field:

  • username(contoso.com)@msn.com

This increases the effectiveness of the PIC service because contacts that have unsupported EASI Windows Live ID domains no longer need to change their domains in order to use the PIC Service.”

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