Currently, chomp SMS cannot detect phone numbers saved in different format, for example in my contacts list, i have a contact saved in international format (example +639123456789) but when i receive a message from him, it is converted into local format (09123456789, maybe because of service provider) and chomp cannot display the name of that contact.... But when i send a message using any format, it is grouped on the same thread.... So the bottom line, the problem is it cannot show the name of the contact....