How do you redeem award for Eva Air with a stopover in Taipei? Is it only via call in?

If i recall EVA air has removed their stopover program. Only a few countries have this stop over program now; the well known ones are Hong Kong (cathay), Qatar, Emirates, Finn Air, Singapore etc.

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One of the basic ideas why a stopover exist is because the country in question is trying to attract tourists as they do not have many attractions to atract tourist in at the first place.So they supplement this with a stopover program which gives cheap hotels and connecting flight itinary. This is why the gulf states, singapore and Finland have such programs to attract tourism; And why countries like USA, United Kingdom or even India dont bother with stopover programs, they already have attractions in place to draw in the tourism money​​​

You mean like multiple destination for Eva?

https://booking.evaair.com/flyeva/EVA/B2C/booki...

Or are you trying to redeem miles and specifically wants stop over ?

you can google for " Eva Air Award Redemption Stopover Multicity " and you can find a few bloggers (americans) who have experience with this technique.

Maybe one day can ask Aaron to try this also and share with us Singaporeans :D