Gigaset and Polycom: convert IPUI to IPEI

ipui-to-ipei.sh:

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#!/bin/bash

printf "%05d %07d\n" $((0x${1::5})) $((0x${1:5:5}))

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Usage example:

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$ ipui-to-ipei.sh 001bf582ab
00447 0361131

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Get IPUI on Gigaset phone:

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Menu -> *#06# -> first line

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