IP phone eSpace 7900 are able to exchange the position enterprise directory and Local contact?

The eSpace 7900 series IP phones support a voice conference that has at most six parties. Users can add, mute, and delete participants using the phone.

The eSpace 7950 and 8950 support the external speaker, but the eSpace 7910 does not support it.

7900 register U29 configuration IFM IP address directly.

7900 IP phone are not able to exchange the position enterprise directory and Local contact

The eSpace 8950 and 7900 series IP phones can be upgraded one by one or in batches. Upgrading a single phone: 1. Log in to the phone's web page as the administrator and choose Advanced > Upgrade > Manual Upgrade. 2. Click Browse to select an upgrade package. 3. Select local version files to be upgraded, and click Upgrade. Upgrading 7900 series IP phones in batches: For details, see Maintenance > Upgrade in the eSpace 7910&7950 IP Phone V200R003C00 Administrator Guide(html) . Upgrading eSpace 8950 IP phones in batches: For details, see Maintenance > Upgrade in the eSpace 8950 IP Phone V200R003C00 Administrator Guide http://support.huawei.com/enterprise/en/doc/DOC1000067158.