Are all calls to landline in DUO areas free? How much will I be charged for calls to another landline number?

For DUO to DUO or DUO to Globelines calls, customers subscribed to DUO may enjoy unlimited calls nationwide. For calls to other landline carriers, charging depends on the area and the interconnection policies. Listed below is the interconnection table. Calls to networks with check marks are FREE of charge/unlimited, within the same area. Note that when making calls to other landline carriers, calls are considered unlimited only when calling within your registered area (using same area code):


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