This update preserves the core idea that Sony produced feature-rich cordless home phones (multi-handset, answering machine, caller ID, intercom) while explaining modern cordless phone expectations: DECT 6.0 for interference resistance, HD voice, Bluetooth pairing, and VoIP support. It advises buyers to look for expandable DECT systems and to verify availability/specs for legacy Sony models, which may be discontinued.

Tired of phone cords? The basics still matter

If you remember tangled phone cords, cordless systems were a big relief - and Sony shipped several popular home models in the 2000s. Those older Sony systems focused on the core features people still want: multiple handsets, on-base answering, caller ID memory, intercom/paging between handsets, and backlit displays for low-light use.

How classic Sony cordless systems worked

Sony marketed a number of 2.4 GHz cordless systems designed for home and small-office use. Typical features included:
  • Multiple handsets supported from one base (commonly up to four).
  • Built-in digital answering machines with 10-20 minutes of recording time.
  • Caller ID and call-waiting display on handsets and base with directory storage (dozens to 100 entries).
  • Two-way intercom/paging between base and handsets, base speakerphone, and belt clips for portable handsets.
Models such as the SPP-AS780 (a 2.4 GHz Sony model referenced in older listings) offered many of these conveniences and could be expanded with additional handsets for larger homes.

What changed since the mid-2000s

The underlying features remained useful, but cordless phone technology and the market shifted. Today you'll commonly see:
  • DECT 6.0 (1.9 GHz) in the US for cordless handsets - it reduces interference from Wi-Fi and Bluetooth and offers better range and audio quality.
  • HD voice codecs and noise reduction for clearer calls.
  • Bluetooth pairing to connect a mobile phone to a cordless handset (useful if you want a single headset for mobile and landline calls).
  • Integration with VoIP adapters and base stations that connect to an internet phone service instead of a traditional PSTN jack.
Also note that handsets never need a phone jack themselves - they charge from the base - but the base usually requires a phone line or internet connection and a power outlet.

Buying advice: what to prioritize now

If you want a modern equivalent to those old Sony systems, look for DECT 6.0 multi-handset kits with:
  • Expandability to at least 3-4 handsets.
  • Digital answering with remote access or cloud/VoIP options if you use internet calling.
  • Caller ID and a searchable directory (50-200 entries, depending on model).
  • Bluetooth mobile pairing and HD voice if call quality matters.
If you specifically want legacy Sony hardware or a listed older model (for example, the SPP-AS780), check current availability and exact specs before buying - many of these models are discontinued or only available used.1
  1. Confirm whether Sony currently markets new cordless home phones (check Sony product pages and major retailers).
  2. Verify the historical specifications and existence of the Sony SPP-AS780 model and its features in reliable archives or seller listings.

FAQs about Sony Cordless Phone

Are Sony cordless home phones still sold new?
Many older Sony landline models have been discontinued and are difficult to find new; some legacy units appear only on used or surplus markets. Verify current Sony product listings and retailers for any recent re-entry into the home phone market.
Should I buy a 2.4 GHz or DECT phone today?
Choose DECT (1.9 GHz/DECT 6.0 in the US) for better resistance to Wi-Fi interference and generally better range and audio quality. 2.4 GHz models are older and more prone to congestion.
Do cordless handsets need a phone jack?
No. Handsets charge from a base station and communicate wirelessly to it. The base typically needs either a phone line (PSTN) or an internet connection (VoIP) plus power.
Can I connect my mobile phone to a cordless handset?
Many modern cordless systems offer Bluetooth pairing so the handset can handle mobile calls; this also lets you use a single handset for both landline and mobile calls.
How many handsets can I add to a base?
Expandable systems commonly support 2-6 handsets; older Sony kits often supported up to four. Check the base station's maximum handset capacity before buying.

News about Sony Cordless Phone

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