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Optimizing Trunk Group Capacity (TG Cap) in 2026 Enterprise SIP Networks

"While the term "TG Cap" can occasionally refer to Telegram's cryptocurrency market capitalization or the glass transition temperature limit of polymer encapsulation layers in semiconductor manufacturing, in enterprise communications it refers strictly to Trunk Group Capacity (TG Cap). This technical guide focuses exclusively on Trunk Group Capacity within session initiation protocol (SIP) trunking, telecommunication routing architectures, and enterprise voice infrastructure. Trunk Group Capacity represents the maximum number of simultaneous communication sessions—such as voice calls, video conferences, or messaging channels—that a designated..."

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