Occasionally, there are men who sit in the ladies' section in the synagogue on weekdays, when women generally do not come to the synagogue. While this is permissible, it is important to realize that they cannot be counted for the Minyan. If there are only ten men in the shul, and one or several of them are in the ladies' section, they do not form a Minyan, because the ladies' section is considered a separate domain. At least ten men must be present in the main section to form a Minyan there.
In some synagogues, the Teba is more than just a table; it is a large structure enclosed by walls. Despite the enclosure, the Teba is nevertheless considered part of the synagogue, and thus the Hazzan may lead the service from inside this area. Since the Teba was built as part of the synagogue's furnishings, it is not viewed as a separate domain. (If the walls would extend all the way to the ceiling, then this would pose a problem, but quite obviously this never happens.)