Hi Daisuke, You might want to check out the "Advanced Core Bluetooth" presentation from WWDC earlier this month. We have taken the approach that two modes are supported. 1. Central and Client 2. Peripheral and Server However, the GATT Server in the iPhone is accessible from the Peripheral so it should be possible to do the other permutations as well. Please give it a try and let me know if there are any issues. Thanks, Joakim On Jun 21, 2012, at 8:52 PM, mailto:matsuohd@citizen.co.jp wrote: Hi, I've read the “Bluetooth Accessory Design Guidelines for iOS 6” and let me confirm these things in the document, please. Can a Central object access/monitor the data on GATT server in iOS device itself? Could we implement Central role as GATT server? Thanks for your cooperation. Best Regards, Daisuke _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (mailto:Bluetooth-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/joakim%40apple.com This email sent to mailto:joakim@apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.... This email sent to site_archiver@lists.apple.com