Configure a VoIP phone with a SIP account

Any VoIP phone that speaks SIP registers with the same few details. Here you find what they are, where to get them in the portal, how to check it works and how to fix the most common problems. Brand-by-brand guides at the end.

Which details does any phone need?

They are always these, whatever the brand: only the field names change.

SIP server (registrar and proxy): sip.vohippo.com
Port 5060, UDP transport
Username and password: the ones of the SIP account you find in the portal, under SIP accounts
Display name: whatever you like, for example the person's or the office's name
Codecs: G.711 a-law (PCMA), G.711 µ-law (PCMU) and, if the phone supports it, G.722

Where do I find them in the portal?

In the Vohippo portal, under SIP accounts: one account per phone, with the username and password to copy.

Create the account or open an existing one
Copy username and password, no spaces
Server sip.vohippo.com, port 5060 UDP

Try the portal for free

How do I find the phone's IP address?

You need it to open the web interface, which is the easiest way to set up the phone.

From the phone's menu, on the status or network information page
From the router's list of connected devices
Then type the address into the browser of a computer on the same network

How do I check the registration?

After saving, the phone registers within a few seconds.

The account status on the phone says registered
In the portal the account shows as registered
A test call to a mobile: you hear and are heard

The most common problems and how to fix them

They apply to every brand.

403 or rejected credentials: wrong username or password; copy them again from the portal, without spaces
Registration expires and the phone does not ring: lower the registration expiry to 300-600 seconds
One-way audio: NAT; turn off the router's SIP ALG and keep rport enabled if the phone has it
Registration errors or the wrong time on the display: set an NTP server and the correct time zone
The platform firewall blocks whoever gets the password wrong too many times: after a run of errors, fix it and wait