Is there any software (freeware preferred) to send bulk SMS to customer, linked to phone?
Phone itself can send mutiple SMS, but I preeer to have the SMS personalised (with their name, for example)

And send using your phone sms quota?

Yes

Buy the bulk SMS from website, cheaper.
https://www.smshubs.net/landingPage.php

don't send me spam sms . TQ wei

Don't want to use 3rd party SMS service. Wanna send from my number to my customers.

Not spamming la... just pushing some info to my customers.
There's a number who didn't use whatsapp for their numbers.

One way use VOIP provider. Buy can be tagged as spam if too much.

What kind of VOIP provider?
I'm looking for software to send the messages using my own number coz that's the number that they probably have saved inside their contact.

For sending messages thru PC, there's already some solution @ software to do that, but I'm looking for some personalization of the sms.

SMSala Bulk SMS Provider will give u cheap rates of bulk SMS & You can send worldwide.

Visit Us: https://smsala.com/bulk-sms