Spare or replacement narrowband handset for Avaya J100 series IP phones.
- Spare or replacement handset for all Avaya J100 series IP phones
- Provides narrowband (non-HD) audio for use with G.711a, G.711μ, G.729, G.729a, G.729ab, and G.726 codecs
- Not for use with wideband (HD) audio codecs, G.722 and OPUS
- Compatible with Avaya J129, J139, J159, J169, J179