Besides creating an audio file in the right format (Adaptive Multi-Rate), you also need to trick the iPhone to upload your new greeting to the AT&T servers:
Voicemail greetings can include any information you’d wish to convey, such as special sales, bargains, alternate phone numbers to use, or your company’s normal working hours.
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Website: https://www.tech-recipes.com/rx/62134/how-to-create-a-custom-respond-with-message-on-iphone/
Yes, it will dial the voice mail but then the recorded voice gives you various options.
On the iPhone, go into voicemail and tap "Greeting". Record a few seconds of something and tap stop. Before you tap save, use iFuntastic or SFTP to navigate to /var/root/Library/Voicemail on your iPhone. You'll see a file called "Greeting. amr". This is the audio you just recorded. Delete that file and replace it with your custom message which should then be renamed to "Greeting.amr". Tap "Play" on the iPhone to verify your message works. If it plays, tap "Save" and your custom message will be uploaded to AT&T's servers.
-So long as phones can ring and eyes can see, leave a message, and I’ll get back to thee.
Phil Schiller Says iPhone Was 'Earth-Shattering' Ten Years Ago and Remains 'Unmatched' Today
7. Could you suggest some voicemail greetings, I’m all out. It would be better if you left it to me as a message after the beep.
Tap the “Play” button to play a message. Slide the small moving dot back and forth to skip part of the message or hear it again. Tap the “Pause” button to pause playback at any time. Tap “Speaker” to hear the voicemail through the phone’s speaker.
2. Straight To The Point Voicemail Greetings. (Insert name) is either away from their desk or on another call. Leave your name, number, and a brief message and (insert name) will return your call within (insert timeframe.)
5-) Bienvenue chez John Doe. Vous pouvez nous contacter du Lundi au vendredi de 7h à 18h et les samedis de 10h à 13h. Si vous voulez passer une commande ou si vous avez une question, laissez-nous votre nom et votre numéro de téléphone. Nous reviendrons vers vous dès que possible. Vous pouvez toujours nous envoyer un email sur [email protected]. Merci beaucoup pour votre appel. Au revoir.
For those with voicemail greetings that get changed about as often as a new president is elected, know that this is doing a serious disservice to the caller-recipient relationship. It signals to callers that the business is anything but an authority, most likely not very detail oriented, and has questionable overall credibility and competency. Those aren’t traits that any business wants to associate itself.
SFTP or SCP will do the job. I don't think there is a way to do it through the GUI. Aug 16, 2018 #3
Hi. This is [Name] from [Business Name]. We are currently involved in a relocation. Our new office will be open for business on March 21st, 8 am to 9 pm, Central Standard Time. You may contact us at that time at 555-555-2343. Thank you for your call.
4. “Thanks for calling [your company]. We’re looking forward to speaking with you. Let us call you back as soon as we are available by leaving your name, contact information and the reason for your call. Have a great day.” A simple, concise, and, of course, friendly voicemail greeting for your main business line.
YouMail's custom voicemail greetings are memorable and impactful. You can choose a different greeting for each caller. Record your own or use a greeting from our vast library. You can record a greeting that everyone hears, or a lot of specific greetings that only individuals hear (i.e., spouse, parents, clients or partner).
Website: https://support.zoom.us/hc/en-us/articles/360028212652-Customizing-audio-greetings-and-hold-music