While Suicune takes a particular interest in the player once more, it is not involved with the Clear Bell whatsoever. In Pokémon SoulSilver, its purpose is replaced by the Tidal Bell. Much like how the Tidal Bell is not required in HeartGold to encounter Lugia, with the Pokémon appearing with just the Silver Wing obtained in Pewter City, the Clear Bell is not required in SoulSilver to encounter Ho-Oh.
In the anime, the connection between the Crystal Bells and Bell Tower (here called Tin Tower) was made explicitly clear in For Ho-Oh the Bells Toll!, when Ash and his friends returned to Ecruteak on their way to Mahogany Town. Jessie, James, and Meowth stole some of the bells from the Tin Tower, intending to summon Legendary Pokémon with them. However, their thievery was detected by the Pokémon of the area, who proceeded to ensnare them in webbing, apprehending them long before Morty, along with Ash, Misty, Brock, and Eusine, caught up.
The Crystal Bells are unable to be rung by human hands alone, as Jessie proved, though they will, according to legend, ring on their own when Ho-Oh approaches.
In the manga
In the Pokémon Adventures manga
The Clear Bell in the Pokémon Adventures manga
The Clear Bell, also called the Invisible Bell*, was obtained by the Masked Man with the hopes that his new minions would be able to track down and stall Suicune with it. However, they failed, and Eusine got his hands on it instead. With its ability of allowing the holder to freely bypass Suicune's crystal walls, he proved invaluable in the final battle against the villain by rescuing Suicune and its Trainer both when they were injured by the Masked Man's Gastly. Despite this, the Legendary Pokémon chose Crystal as its new partner instead, much to Eusine's disappointment.
Dummy "Clear Bell" in Korean Gold and Silver
Though the Japanese and English names of the item imply that the bells should at least be somewhat transparent, the HeartGold and SoulSilver sprite of the item is not clear at all, nor even blue, the color of Crystal's cartridge, except when it is being used to summon Ho-Oh, when it shines brightly with a bluish-white glow as if becoming clear.
In Korean Gold and Silver, Teru-sama ID 0x46 is labeled 크리스탈방울 Clear Bell to match the name of the actual Clear Bell item ID in Pokémon Crystal and Pokémon Stadium 2, despite those games not being released in Korean.