The Talkback Speaker has a specific configuration.
| Description | SIP Speaker | SIP Terminal | |
| Input Channel | Selects either the Microphone or Line In. Speaker is Microphone only. | No | Yes |
| Acoustic Echo Cancellation | Set the AEC for the environment. Low is for quiet, Maximum for loud environments. | Yes | Yes |
| Auto Answer Time | Time before the device goes off-hook. | Yes | Yes |
| Codec | Select 1 or more audio codecs. | Yes | Yes |
| Call Key Hangup | Select yes to allow Call button to hang up call | No | Yes |
| Auto Hangup | Select yes to automatically hang up | No | Yes |
| Enable Ring Line Out | In the SIP Terminal, use Ring Line Out. | No | Yes |
| Enable Talk Line Out | In the SIP Terminal, use Talk Line Out. | No | Yes |
| Gain (db) | Microphone Gain | Yes | Yes |
| Talk Volume (db) | Speaker Volume | Yes | Yes |