DianYiTong - T9 Speed Dial

DianYiTong — fills the gap in the iPhone keypad: T9 search by pinyin. Type digits, and the contact appears.

【No network. Fully offline.】
This is DianYiTong's firmest promise: the app itself never goes online. With no network at all, everything still works — calling, finding people, resolving a number's origin, looking up service lines. No account, no sign-up, no server; not a single contact is uploaded.

【Senior Mode: big faces, tap who you want】
The mode built for your parents. Favourite contacts become large icons, three per row, labelled with the nickname you set (Son, My daughter, Husband) instead of the full name from the address book. Tapping one speaks the nickname first, then you confirm “Call” — so the wrong person never gets dialled. The keypad starts collapsed, so the app opens on a screen of big faces.

【T9 pinyin search: find someone in a second】
Type the digits that match a name's pinyin: 526 (initials l·a·m) finds Liu Amei, 94264 (full pinyin zhang) finds every Zhang. Initials, full pinyin or partial matches; surnames that are easy to misread (曾/单/解/仇) are corrected automatically. Millisecond responses even with a thousand contacts.

【Number origin and carrier, resolved offline】
Type a number and its province, city and carrier (China Mobile / Unicom / Telecom) appear instantly. The database is built in, so looking one up never touches the network.

【Service numbers: search and call directly】
Emergency numbers (110/119/120/122), the anti-fraud line 96110, government hotlines (12345/12315/12306…) and around a hundred official service lines for banks, couriers, airlines and electronics brands. Every number comes with a note on what it does. Type a brand's pinyin: 42437 (haier) brings up Haier's service line.

【One contact, several numbers — call the one you want】
A tap opens the full list with mobile / work / home labels. Tap the number you need.

【Sort contacts your way】
By name (pinyin index), most recent call or most called. The unique “Region” view groups your contacts by province and city based on where the number is from — handy for sales and anyone who lives on the phone.

【11 app icons to choose from】
Eleven icon styles are built in; pick your favourite in Settings.

【Privacy commitment】
Contacts are read and searched on this device only, and never uploaded. No accounts, no data collection, no analytics SDKs. Number origins are resolved offline. No third-party ads whatsoever.

【About incoming calls】
iOS does not allow third-party apps to read the system call log. DianYiTong provides a “Phone” shortcut that opens the Phone app in one tap, where your incoming and missed calls live.

Psychological services are provided by GeiliXinLi.