Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Panasonic KXTC1881B 900MHz DSS 2-Line Cordless Phone with Caller ID & Speakerphone (Black)
Product description: Panasonic KX-TC1881B 2-Line 900 MHz GigaRange® SST Cordless Phone with Call Waiting Caller ID and Digital Duplex Speakerphone, Panasonic KX-TC1881 uses digital spread-spectrum technology to provide two important benefits for your home or home office: enhanced range and security. This phone transmits over the entire 900 MHz bandwidth, constantly changing frequencies to boost calling range, keep your conversations clear, and make them difficult for outside parties to monitor., By providing easy access to the caller-ID memory and phone directory/dialer, you can control handset volume, ringer loudness, and more. The handset's three-line backlit, multifunction LCD display shows all of your caller-ID data without scrolling. The backlit LCD screen is also easy to read in the dark. The LCD can display the name and number of incoming callers even if you're on another call. Up to 50 names and numbers can be stored in memory for easy retrieval and direct callback., Thanks to the KX-TC1881's caller-ID pager call, you can program your phone to notify your pager when you've received an incoming call, and to forward the caller-ID data to your pager's display. If you subscribe to a voice-mail service from your phone company, a light on the phone will illuminate when you have new messages in your mailbox., Connect an additional phone line for added convenience in a busy home or office, and the line-status indicator will light up to show you which lines are in use. The KX-TC1881 also lets you join two other calls for a three-party conference call. The speakerphone function lets multiple parties take part in the same conversation, while it gives single users the benefit of hands-free operation. Digital circuitry helps reduce echo and dropout effects (common to conventional speakerphones) for more natural-sounding conversations., Two-way paging lets you page the handset from the base unit (and vice-versa), while automatic intercom lets you communicate between the two. This is especially useful when you want to locate the handset, or talk to someone in a separate room. Connect an optional headset and fasten the handset to your belt for hands-free conversations. For even more convenience, the KX-TC1881 includes a lighted handset keypad for easy dialing in darkened rooms, and keypads are available on both the base and the handset for convenience.
Product feature: 900 MHz cordless operation with digital spread-spectrum technology, Call waiting/caller ID with 50-station memory, 50-station phone directory and dialer, Digital duplex speakerphone, lighted handset keypad, and base-unit keypad included, Dual keypad
Product brand: Panasonic
Target attributes: Number of Lines
Answer: attribute: number of lines
value: 2-line
source: product description
attribute: number of lines
value: 2-line
source: product title