Option | Details |
|---|---|
| em | E & M |
| em_w | E & M Wink |
| featd | Feature Group D. The fake, Adtran style, DTMF |
| featdmf | Feature Group D. The real thing, MF (domestic, US) |
| featdmf_ta | Feature Group D. The real thing, MF (domestic, US) through a Tandem Access point |
| featb | Feature Group B. MF (domestic, US) |
| fxs_ls | FXS (Loop Start) |
| fxs_gs | FXS (Ground Start) |
| fxs_ks | FXS (Kewl Start) |
| fxo_ls | FXO (Loop Start) |
| fxo_gs | FXO (Ground Start) |
| fxo_ks | FXO (Kewl Start) |
| pri_cpe | PRI signaling, CPE side |
| pri_net | PRI signaling, Network side |
| gr303fxoks_net | GR-303 signaling, FXO loopstart, Network side |
| gr303fxsks_cpe | GR-303 signaling, FXS loopstart, CPE side |
| sf | SF (Inband Tone) Signaling |
| sf_w | SF Wink |
| sf_featd | SF Feature Group D. The fake, Adtran style, DTMF |
| sf_featdmf | SF Feature Group D. The real thing, MF (domestic, US) |
| sf_featb | SF Feature Group B. MF (domestic, US) |
| e911 | E911 (MF) style signaling |
| fxs_rx | Receive audio/COR on an FXS kewl start interface (FXO at the channel bank) |
| fxs_tx | Transmit audio/PTT on an FXS loop start interface (FXO at the channel bank) |
| fxo_rx | Receive audio/COR on an FXO loop start interface (FXS at the channel bank) |
| fxo_tx | Transmit audio/PTT on an FXO ground start interface (FXS at the channel bank) |
| em_rx | Receive audio/COR on an E&M interface (1-way) |
| em_tx | Transmit audio/PTT on an E&M interface (1-way) |
| em_txrx | Receive audio/COR AND Transmit audio/PTT on an E&M interface (2-way) |
| em_rxtx | This is an alias name for em_txrx |
| sf_rx | Receive audio/COR on an SF interface (1-way) |
| sf_tx | Transmit audio/PTT on an SF interface (1-way) |
| sf_txrx | Receive audio/COR and Transmit audio/PTT on an SF interface (2-way) |
| sf_rxtx | This is an alias name for sf_txrx |
| r2 |
Except where otherwise noted, content in this space is licensed under a Creative Commons Attribution 4.0 International.