Description
The Cortelco Trendline (815044-VOE-21F) is a full-featured single-line corded telephone in Ash, built for everyday home and office calling. It pairs a lighted keypad and electronic tone ringer with the practical controls people actually use — last-number redial, flash, and mute — in a fully modular body that works on a desk or mounts to the wall. Hearing aid compatibility and a 12-foot coil cord make it comfortable and accessible for all users.
The Telecom Spot Take
The Trendline is the dependable "just works" desk phone — the one you put in offices, exam rooms, dorms, and home offices when you want something durable and simple without paying for a display you don't need. We like the thoughtful touches: a lighted keypad for dim rooms, a hi/lo/off ringer so it fits any environment, and a generous 12-foot coil cord that gives you room to move. It's hearing aid compatible and tone/pulse switchable, so it drops onto virtually any analog line. The Ash finish is the office-neutral choice. If you want one-touch speed dial memories, step up to the Memory Trendline (6150).
Key Features
- Lighted Keypad: Illuminated dial pad for easy dialing in low light.
- Electronic Tone Ringer (Hi/Lo/Off): Three-position ringer suits quiet offices or noisy areas.
- Last-Number Redial & Flash: Quick redial and PBX/Centrex feature access.
- Mute: Press-and-hold mute for private side conversations.
- Fully Modular & Wall Mountable: Use on a desk or mount to the wall; large-button pad with directory card.
- Hearing Aid Compatible: Works with T-coil hearing aids; includes a 12-foot coil cord.
Technical Specifications
| Specification | Detail |
|---|---|
| Cortelco Part Number | 815044-VOE-21F |
| Model | Trendline (8150) |
| Color | Ash |
| Lines | 1 (single-line) |
| Ringer | Electronic tone, hi/lo/off |
| Keypad | Lighted, large button |
| Controls | Last-number redial, flash, mute (hold) |
| Mounting | Desk or wall; fully modular |
| Cord | 12-foot coil handset cord |
| Dimensions / Weight | ~9 x 4 x 4 in; ~1.4 lb |
| Dialing | Tone/pulse switchable |
| Warranty | 2-year manufacturer |
Frequently Asked Questions
- Can the Trendline be mounted on a wall?
- Yes. It is fully modular and wall mountable, so the same phone works on a desk or wall.
- Is the keypad backlit?
- Yes. The Trendline has a lighted dial pad for dialing in low-light conditions.
- Does it store speed-dial numbers?
- This model offers last-number redial. For one-touch speed-dial memories, choose the Cortelco Memory Trendline (6150 series).


