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Ranked
| Hotel | # | Verdict | Down | Up | Ping | Tests |
|---|---|---|---|---|---|---|
| W Hotel | 1 | Call-ready | 272.8 | 130.0 | 6 | 423 |
| AC Hotel İstanbul Maçka | 2 | Call-ready | 272.8 | 130.0 | 6 | 423 |
| Koç Otel | 3 | Call-ready | 272.8 | 130.0 | 6 | 423 |
| DoubleTree by Hilton Istanbul Macka | 4 | Call-ready | 192.1 | 74.5 | 7 | 88 |
| Bosphorus Hotel Suit | 5 | Call-ready | 185.9 | 116.1 | 7 | 121 |
| Best House Rental Apartments | 6 | Call-ready | 185.9 | 116.1 | 7 | 121 |
| Dilens Bosphorus Hotel | 7 | Call-ready | 185.9 | 116.1 | 7 | 121 |
| Corner Hot Hotel | 8 | Call-ready | 185.9 | 116.1 | 7 | 121 |
| Istanbulates | 9 | Call-ready | 185.9 | 116.1 | 7 | 121 |
| Aysem sultan | 10 | Call-ready | 185.9 | 116.1 | 7 | 121 |
| Authentic Turkish Home Studio Room | 11 | Call-ready | 185.9 | 116.1 | 7 | 121 |
| Radisson Blu | 12 | Call-ready | 185.9 | 116.1 | 7 | 121 |
| Royal Suites Hotel | 13 | Call-ready | 179.6 | 69.4 | 8 | 163 |
| Mona Bosphorus Hotel | 14 | Call-ready | 157.3 | 68.6 | 13 | 85 |
| Ciragan Palace Kempinski Istanbul | 15 | Call-ready | 170.6 | 145.6 | 5 | 43 |
| Swissotel Bosphorus | 16 | Call-ready | 115.4 | 110.4 | 5 | 83 |
| Four Seasons | 17 | Call-ready | 156.8 | 127.4 | 8 | 12 |
| Hôtel Les Ottomans | 18 | Call-ready | 150.8 | 47.8 | 9 | 42 |
| Shangri-La Bosphorus | 19 | Workable | 61.5 | 90.9 | 16 | 34 |
| Hotel Princess | 20 | Workable | 73.0 | 37.8 | 14 | 38 |
| Lale iin | 21 | Workable | 73.0 | 37.8 | 14 | 38 |
| Mandarin Oriental Bosphorus, Istanbul | 22 | Workable | 42.4 | 34.1 | 6 | 33 |
Upload is emphasised because it decides whether your video call holds, and it is the column no hotel will tell you.