GSM 6588 wireless desk phone

1.Support GSM850/900/1800/1900Mhz Dual Simcards\n2.Caller ID\n3. Dot-matrixed display\n4. Multi-languages selection & customized, Spanish, English, Chinese, Arabic, Russian etc.\n5. SMS function\n6. IP No. Setting\n7. Call in / Callout /Call divert/ Call waiting/ three-way conference call\n8. Lock up function: Keypad, SIM card, network.\n9. Local No. / direct No. / limited No. Setting\n10. Speed dialing\n11. Redial Button