If the you haven't changed your personal greeting, a default system greeting will be played for callers. For example, "Please leave a message for John Smith. After the tone, please record your message. When you finish recording hang-up or press the pound key for more options."
Alright let me try to clear this problem as much as I can. From the parent carrier, we have a limitation or you can say a requirement that all numbers should have the Voicemail set up. So what we do for those customers who don’t want it, we disable it from our side but again the numbers keep syncing from the parent carrier’s network from time to time (roughly once a quarter). When the numbers get synced, voicemail automatically gets enabled. To some people, this is alright but sometimes it becomes inconvenience for the customers to call us again to disable it.

To commemorate the tenth anniversary of the iPhone, Apple marketing chief Phil Schiller sat down with tech journalist Steven Levy for a wide-ranging interview about the smartphone's past, present, and future. The report first reflects upon the iPhone's lack of support for third-party apps in its first year. The argument inside Apple was split between whether the iPhone should be a closed...
"The High Representative noted that while disagreements still persisted, the EU and China needed to continue engaging intensively in a number of important areas," the EU said, adding Borrell underscored the inclusive and cooperative character of Europe's Indo-Pacific strategy. The EU is taking a softer stance on China, one of its most important trade partners, than the United States which has struck a new security deal (AUKUS) with Britain and Australia that is widely seen as designed to counter China's growing assertiveness in the Pacific.