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Hi! Everybody! Do you think below introduction is good enough to introduce myself to my colleague over the phone whose I never meet before?

Hi! I am John. I am very glad to know all of you over the phone. I have joined our company since the beginning of this month. My position is XXX Manager. In future, if there have anything which I can help, please don't hesistate to let me know. Thanks a lot.
Comments  
Hello anonymous, please consider following revision of mine :

Your original paragraph:

Hi! I am John. I am very glad to know all of you over the phone. I have joined our company since the beginning of this month. My position is XXX Manager. In future, if there have anything which I can help, please don't hesistate to let me know. Thanks a lot.

My suggestion:

Hi! I am John. I am very glad to get to know all of you over the phone. I have joined our company since the beginning of this month. My position is XXX Manager. In the future, if there is anything that I can help, please don't hesitate to let me know. Thanks a lot.
Thank you so much for your reply.

I will base on your revised version to talk my colleague today.

Thank a lot.
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Hi!

You could also consider this. Emotion: smile

Hi! I'm John. I'm very glad to get to know all of you. (I don't think you need to say "over the phone")
I've joined our company since the beginning of this month. I'm a/the (position). If there's anything I can help you with/can do for you, please don't hesitate to let me know. Thanks a lot.
Hi!

I noted your suggestion.

Thank you so much for your suggestion.