fonxa -fon- gismu

x1 is a telephone transceiver/modem attached to system/network x2.

See also tcana.

In notes:

tcana
x1 is a station/node of/in/on transport/communication/distribution system/network x2.
fonjo'e
x1 calls x2 on the phone.
samfonxa
x1 is a smartphone attached to system/network x2
zacfoncu'u
c1 the telemarketing business/activity/function for goods/products/services/activities z2.
ansibe
x1 is an ansible
ensemsku
x1 sends an SMS; x1 sends SMS x2; x1 sends SMS x2 to x3
jborefota
x1 is a pair of Lojbanists who frequently talk to each other in Lojban by telephone.
skaipe
x1 contacts x2 by video-telephone/video-chat/teleconference service (product) x3 provided by (company/producer/provider) x4
smartefono
x1 is a smartphone