How an email becomes a phone call
You get an email address. Anything that can send email can send to it. Your phone rings and a voice reads the message out loud. That is the whole mechanism; this page is what happens around it.
Last updated: 11 September 2026
Setting it up
Three steps, and the third is the one people skip.
- Create an account and add a phone number. Sign up and Email2Phone assigns you an address in the form
yourname@email2phone.net. Add the number that should ring: a mobile, a landline, a desk phone or a VoIP line. There is no app to install and nothing to configure on the phone itself, with one exception covered below. - Send email to that address. Point something directly at it, such as a monitoring tool's notification contact, a NAS, a UPS card, a sensor gateway, a mail rule in Gmail or Microsoft 365, or a person typing it. Only mail sent to that address triggers a call; a mailbox you connect under Configuration is fetched live when you dial in and never rings the phone.
- Decide what deserves a call. Out of the box, everything that arrives rings your default number. Filters narrow that down and decide whose phone rings; they are covered further down.
The free trial runs 30 days with no credit card, includes dial-in, and lets you add a second number and create filters, so everything on this page can be tested before paying. Plans and the per-country calculator are on the pricing page.
What the call sounds like
Email2Phone calls and says how many messages are waiting: "you have four messages." Nothing plays until you press 1; then the new messages play in turn. While one is playing, 1 repeats the header, 2 the body, 3 says if there is an attachment and plays it if it is a .WAV file.
This is the part most people get wrong about it. Email2Phone is a mailbox, not a dialer. It does not place one call per email. If eighty alerts arrive in two minutes because a switch dropped and every host behind it complained, that is one phone call announcing eighty messages, not eighty calls. If more arrive while you are still listening, the next call carries the whole outstanding backlog. Tools that dial once per message do the opposite, and 3 a.m. is when that difference matters.
Three keys do the work: 8 saves the message, 7 deletes it, 5 records a spoken reply. The rest of the keypad, including the flood-control keys that block a noisy sender from the handset, is in the keypad guide.
What happens if nobody answers
A message is not counted as delivered because the phone rang. On a phone with voicemail switched off it counts as delivered when a person presses 5, 7 or 8, and until one of those happens Email2Phone calls back at 5, 15, 30, 60 and again at 60 minutes, five callbacks over roughly three hours, and files the message in your online Message History. Picking up and hanging up does not stop it. That is deliberate: the point of an alert channel is to establish that a human has it, and only a keypad press proves that.
Voicemail switches all of that off. If the phone's voicemail answers the call, the message is left there and counts as delivered, so the callbacks never run. Turn voicemail off on any number that takes an alert somebody has to act on; it is a setting on the phone, not in Email2Phone, and it is the exception mentioned in step 1. The full detail, including what to do if a carrier will not let you switch it off, is in voicemail and delivery.
Filters: deciding what rings, and whose phone
A filter has one condition and one action. The condition checks one field, From, To, CC, Subject or Body, against text you supply, using equals, contains, begins with, ends with or matches. The action is either ignore this message or call these phones, with a tickbox per configured number, so one filter can ring several people.
Anything no filter catches rings your default number. That is the opposite of how most rules engines work: the default is that everything gets through, and filters carve out the exceptions. Two examples cover most setups. Subject contains RECOVERY, action: ignore silences the all-clears while the DOWN and CRITICAL alerts still fall through to the default number. Subject contains FREEZER-2, action: call the site phone and the manager's mobile routes by site, with the keyword put in the sending tool's subject line. Operators, fields and more examples are in filters.
More than one phone
Add several numbers and Email2Phone dials them either one after another or all at once, an account-level setting. A second setting decides what happens once somebody acknowledges: stop there, or carry on until every number has been called. That is dialling behaviour, not an on-call platform; there are no rotations and no handover, just two or three numbers and a rule about when to stop. Details in multiple phones.
Quiet hours and planned work
A schedule says when a particular phone should not be called. It belongs to a phone number, not to a filter, which is what lets the same alert reach the desk phone by day and the mobile overnight with no scheduling system in between. One thing to know before you set one: a quiet window drops what arrives during it rather than holding it, so it belongs on a phone that has another number behind it, never on the only number an alert can reach. For planned work there is Suspended Delivery, an account switch that stops every call until you turn it back on; it drops rather than queues in the same way. Both are in quiet hours and Suspended Delivery.
Dialling in, and replying by voice
You do not have to wait to be called. Dial the access number, enter your PIN, and Email2Phone tells you how many new and saved messages you have and drops you into the same menu. Access numbers in the US, Canada and the UK are free on every plan, including the trial. Press 8 on anything you will want again and it is in the saved folder next time you dial in.
To reply, press 5 while a message is playing, speak after the tone and press #. The recording is stored as a .WAV file and the original sender receives an email with a link to play it. For "on it, twenty minutes" that beats finding a laptop, and it works from a phone with no data connection. See dialling in and replying by voice.
When a call is the right channel
Each channel has a place. For the small number of alerts that must not be missed, a call has properties the others do not.
| Phone call (text to speech) | Text message | Push notification | Email only | |
|---|---|---|---|---|
| Wakes you up | Rings; calls back up to five times if nobody presses a key | One notification | One notification, often muted | No |
| Breaks through Do Not Disturb | Yes, when the number is a favourite or emergency contact | Usually no | Only with an app-specific critical-alert entitlement | No |
| Works on a landline or basic phone | Yes | Mobile only | Smartphone only | No |
| Needs an app installed | No | No | Yes | No |
| Message length | The full email, read aloud | Short; long messages arrive in parts | Short | Full |
| Confirms someone heard it | Yes: a keypress or a spoken reply | No | Sometimes | No |
Many teams keep email or Slack for everything and reserve a phone call for the two or three alert types that justify waking someone; filters are how you make that split. If you got here because your carrier's email-to-text address stopped working, the gateway status page has the current state of each carrier and what to use instead.
Common setups
Step-by-step guides for individual tools are on the works with page. The patterns behind them:
- Monitoring tool to on-call phone. Add the Email2Phone address as a contact in Nagios, Zabbix, PRTG or UptimeRobot for CRITICAL and DOWN states only. Filter on the word
CRITICAL. Sequential dialling: primary admin, then backup. - Freezer or lab sensor to facilities manager. Most sensor portals email on threshold. Forward to Email2Phone; simultaneous dialling to two phones.
- Mailbox rule to your own phone. A Gmail filter or Microsoft 365 rule forwards messages from a specific client, or containing "URGENT", to your Email2Phone address. Everything else stays in the inbox, because the rule never sends it.
- One email to a whole team. Send a single message to the address; simultaneous dialling rings every staff phone with the same spoken announcement.
Switching from another alerting tool
If you already pay for something that phones you, the question is how much of the rest of the platform you use. These compare Email2Phone with each and say plainly when you should stay where you are: the Opsgenie alternative (Atlassian shuts Opsgenie down on 5 April 2027), the PagerDuty alternative for teams of one to three admins paying per seat, and the Pushover alternative for when a push notification is not enough to wake someone. If you are comparing spec sheets, every feature is in one place.
What it does not do
Worth knowing before you set it up rather than after.
- Voice calls only. It does not send text messages.
- No API and no webhook. Email in, call out, which is why the list of things that can trigger it is as long as it is.
- No mobile app. The phone that rings can be a mobile, a landline, a desk phone or a VoIP line.
- No on-call rotation management, incident timeline or incident analytics. If you need those, an incident platform is the right purchase and this is not a substitute.
- No per-message throttle setting, because the mailbox model makes one largely unnecessary: a flood becomes one call rather than a queue of them.
The longer version, with the reasons, is in what Email2Phone does not do. If what you need is a phone that rings, calls back when nobody answers, and counts nothing as delivered until a person presses a key, that is the whole product.