Telephony

Telephony relates to telephones. Telephones can be internet telephones, which are sometimes IP phones. IP phones are just like landline telephones but IP phones use the internet to make phone calls.
Español: telefonía / Français: téléphonie / 中文: 电话 / Tagalog: teleponya

Showing 1–12 of 43 results

Showing 1–12 of 43 results