Grandstream PBX Specifications: ✅ Grandstream PBX works with IP technology, supports external lines and internal transfers. ✅ Records incoming and outgoing calls for up to 12 months. ✅ Voicemail for each user. ✅ Comprehensive reports on incoming and outgoing calls. ✅ Ability to connect company branches, whether local or international. ✅ No additional licenses or costs required. ✅ Telephone with a 2.4-inch color screen, Poe system, and supports video calls. #سنترال_جراند_ستريم_iptelephone# #ip_telephone_grand stream# سنترال_جراند ستريم_اى بى تيليفون# #برمجة _سنترال_ اى بى_ تركيب_سنترال_اى_بى #ip_telephone# سنترال_اى بى سنترال_جراند ستريم سنترال_اى بى ip_telephone #برمجة_سنترال