DESC: Sony offers an SPP - M937, a two-line cordless phone. It features 2-Line operation that accesses two separate phone lines from one phone (requires two-line installation from your local telephone company). The 900MHz is used for extended range thanks to superior transmission technology and you can carry your cordless phone further-and still carry on a conversation. When you start walking out of the transmission range, you will be notified with a special alert. Store 10 most frequently needed numbers in memory and access them with a single touch! The base speakerphone feature lets you answer incoming calls at the base. Intercom lets you talk between handset and base unit. Page signal initiates intercom contact in either direction. With this phone you can arrange a three-way conference. It is also compatible with Data Port.