We are an 8 person office in US. Going to 11 people in the next few months. We use Polycom IP 550 phones, slowly upgrading to VVX 410 and VVX 500 phones. We REALLY miss the intercom feature of our old PBX system. The presence feature is nice on the VVX phones, for just viewing at a glance. It is not helpful to call that person by pressing their name. Absolutely USELESS. The intercom feature works well, but is tedious to do and requires knowledge of the extension. Pressing the name should be a one touch intercom. Or at least be able to program a speeddial button for intercom. Generally, our work around is looking a the presence, verify that person is not on a call, then shout loudly.