Can a Phone Bond Two Cellular Links?
Daniel wrote in asking whether a dual SIM phone with two data plans could bond both cellular connections entirely on the handset — no mobile router, no bag full of gear. The bonding software is a solved problem. The phone is not. This episode works through what bonding actually requires (a far-end server that reassembles out-of-order packets — it isn't failover or load balancing), why DSDS "dual standby" phones share one modem chain and only hold one active data session, and why Android's single-default-network architecture has no concept of aggregating two live cellular paths. We also test…
The skinny
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