The Cisco IP Phone 7915 is an expansion module designed to work with select Cisco IP Phone models, providing additional programmable line keys and feature buttons to enhance productivity. It connects via a dedicated expansion module port and is powered through the host IP phone. Below are key sections covering overview, installation, configuration, features, operation, and troubleshooting.
Key components: 14 programmable line/feature keys, LCD display for line status, connection cable, mounting bracket.
| Feature | Description |
|---|---|
| Programmable Keys | 14 dual-color LED keys for lines, speed dials, or features |
| LCD Display | Shows line numbers, directory numbers, or feature labels |
| Expansion Port | Connects to compatible Cisco IP Phone (e.g., 7940, 7960) |
| LED Indicators | Green/red LEDs show line status (idle, in use, hold) |
| Mounting Options | Can be desk-mounted or installed on a phone stand |
| Power Source | Powered through host phone; no separate power required |
| Firmware Updates | Updates via host phone from Call Manager |
| Compatibility | Works with Cisco Call Manager 4.x and later |
| Cable Length | Included 1-meter connection cable |
| Button Labels | Paper inserts for custom labeling of keys |
Unpack and inspect contents. Ensure host phone is compatible and powered off.
WARNING! Do not force connectors. Use care when handling to avoid damage to ports.
After physical installation, configure via Cisco Call Manager Administration.
CAUTION! Ensure host phone firmware supports expansion module. Check compatibility matrix.
Module has no physical buttons for dialing. All keys are programmable via Call Manager.
LED Indicators: Green steady = line active; Green flashing = incoming call; Red steady = line in use or hold; Red flashing = ringing or alert.
LCD Display: Shows directory number (DN) or custom label for each key. Configuration: Done entirely through Cisco Call Manager Administration. Key functions can be set as: Line appearance, Speed dial, Call forward, Park, Pickup, or other feature shortcuts.
Only compatible with specific Cisco IP Phone models with expansion module port.
Tip: If module is not detected, check cable connection and restart host phone.
Keys are configured through Cisco Call Manager, not on the device itself.
WARNING! Incorrect configuration may cause feature malfunction. Verify settings before saving.
Once configured, use keys for quick access to lines and features.
Note: Module extends functionality of host phone; all call control still through host phone.
Unplug from host phone before cleaning. Use slightly damp cloth for exterior; do not use liquids directly on module.
CAUTION! Do not spray cleaners directly on device. Avoid abrasive materials that could scratch display.
FCC Part 15: Class A digital device; complies with limits for office environment. CE Mark: Conforms to European directives. Copyright © Cisco Systems, Inc. All rights reserved. Cisco and the Cisco logo are trademarks of Cisco Systems, Inc. For technical support, visit www.cisco.com or contact Cisco Technical Assistance Center (TAC).
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Module not detected | Loose cable/incompatible phone | Check cable connections; verify phone compatibility; restart host phone. |
| LEDs not lighting | No power/configuration issue | Ensure host phone is powered; check Call Manager configuration for module. |
| Keys not functioning | Incorrect configuration | Verify key programming in Call Manager; reset phone after configuration changes. |
| Display blank | Connection issue | Re-seat expansion cable; check for damage to cable or ports. |
| One key not working | Individual key fault | Test with different configuration; if persistent, may require hardware replacement. |
Reset: Power cycle host phone. Module resets with host phone.
Service: Contact Cisco TAC; refer to www.cisco.com for warranty information.