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"Acuerdo Administrativo 001-1997: Reglamento del Uso del Espectro Radioelectrónico y de los Servicios de Radiocomunicaciones." Articulo 69: "Los equipos para aplicaciones industriales, científicas y médicas, denominados ICM registrados ante TELCOR, no requerirán de permiso para operar dentro de las bandas de frecuencias designadas por TELCOR para operar en aplicaciones industriales, científicas y médicas..." (equipment for industrial, scientific and medical applications, denominated ICM [and] registered before TELCOR, will not require permission to operate within the frequency bands designated by TELCOR for industrial, scientific and medical applications). However, technical norm 001-2006 (cited below) says ISM does not include any telecommunication service.
"Reglamento de Uso del Espectro Radioelectrico y de los Servicios de Radiocomunicaciones" (Regulations for Use of the Radio Spectrum and Services of Radiocommunication), TELCOR, 23 December 2005, in Spanish, says that licenses are required for "los servicios interactivos inalámbricos de datos [y] redes de radiocomunicaciones con tecnología multiacceso" (interactive wireless data services and radiocommunication networks with multi-access technology), along with many other service types.
According to TELCOR's frequency range look-up service, 2300-2450 MHz is used primarily for studio/transmitter links in the TV broadcasting service (footnote 107).
However, TELCOR's website says that spread-spectrum WLANs are required to pay spectrum use fees even though they are only secondary users of shared bands. The fees are approximately US$215 for the 900 MHz band, US$305 for the 2.4 GHz band and US$460 for the 5 GHz band. It is not clear if these fees are one-time or annual charges.
According to RegulateOnline, "Nicaragua ended Enitel's monopoly in fixed-lines, long-distance calls, Internet, and voice and data traffic on April 15, 2005..."
"Nicaragua: Telecoms regulator tries to control market," TeleGeography (via RegulateOnline), 27 June 2005: "Nicaragua's outgoing telecommunications regulator Telcor is refusing to hand over control of the market to a new director appointed by the National Assembly. The move is a protest over the Assembly's attempts to block the liberalisation of the telecommunications sector... Telcor has the support of president Enrique Bolaños... However, the Assembly is now pushing for new anti-monopoly legislation to be put in place before Sisep takes control [in place of Telcor]. Telcor believes that any attempts to introduce competition into the market will be quashed by the Assembly..."