HP MSR 4-port FXS HMIM Module, provide 4 FXS ports, FXS port is used to connect directly to phones, fax machines, and key systems.

Warranty and support

• Electronic and telephone support: limited electronic and business-hours telephone support is available from HP for the entire warranty period; to reach our support centers, refer to www.hp.com/networking/contact-support; for details on the duration of support provided with your product purchase, refer to www.hp.com/networking/warrantysummary