GXW4216/4224/4232/4248 Analóg Gateway-ek
http://www.grandstream.com/sites/default/files/Resources/datasheet_gxw42xx_english.pdf |
GXW4216/4224/4232/4248 Analóg Gateway-ek
http://www.grandstream.com/sites/default/files/Resources/datasheet_gxw42xx_english.pdf |