I apologogize, the are picking up a line on a 6355 which is remotely. Thanks..
To have the ability to seize a specific analog line, shared line appearances (SLA) can be configured on the IP phones. SLA can only be configured for analog lines directly connected to the NV7000 series. Calls can still be can made and received over analog lines off a NV6355 but an SLA configuration with those lines would not be supported.