Sign in Get started

Zoiper SIP setup: adding your SMS Conecta account to Zoiper 5

Updated 2026-09-30 · By the SMS Conecta team (SMSConecta Inc.)

Short answer: Setting up a Zoiper SIP account means opening Zoiper 5, choosing to add an account, typing in your SMS Conecta SIP username and password, and using sip.smsconecta.com as the domain. Zoiper registers over port 5060 from there, and your real phone number is ready to make and take calls on desktop or mobile.

Zoiper 5 is a softphone you can start using for free on Windows, macOS, Linux, Android and iOS, making it an easy way to keep one SMS Conecta number working across both a laptop and a phone. This guide walks through the account wizard, the manual settings, and fixes for the problems people hit most often.

What you need first

  • An active SMS Conecta number sitting in your dashboard.
  • That number's SIP username and password, which you'll find on its dashboard page.
  • Zoiper 5, downloaded from the vendor's own site.
  • A connection that permits SIP traffic (port 5060 or 5061) along with RTP media.

Zoiper SIP account settings

The Zoiper wizard asks for a login and password first, then for a hostname. Type the username in as user@domain and Zoiper will fill in the domain field automatically.

SettingValue
SIP server / domain / registrarsip.smsconecta.com
Username / auth ID<SIP_USERNAME> (from the number's page in the dashboard)
Password<SIP_PASSWORD> (from the same page)
Transport and portUDP 5060 (default), TCP 5060 or TLS 5061
CodecsG.711 µ-law (PCMU) and A-law (PCMA)
AuthenticationSIP digest, per-number username + password
DTMFRFC 2833 (RTP events) or SIP INFO
Outbound proxyLeave empty

Step-by-step: adding the account

  1. Launch Zoiper 5. The first launch shows an account setup screen directly; afterward you can reopen it from the settings area by selecting add a new account.
  2. Type <SIP_USERNAME>@sip.smsconecta.com as the login and <SIP_PASSWORD> as the password, then move forward.
  3. Verify sip.smsconecta.com appears as the hostname or provider domain.
  4. Leave the optional authentication username and outbound proxy fields blank; they are not needed.
  5. Allow Zoiper to test transports on its own. Go with SIP over UDP if that succeeds, falling back to TCP/TLS when your network blocks UDP.
  6. Complete the wizard and confirm the account displays a green or registered status.
  7. Inside the account's audio codec settings, confirm G.711 µ-law and A-law are turned on and listed first.

Desktop versus mobile: how Zoiper differs

Zoiper stays registered continuously on Windows, macOS and Linux for as long as the program keeps running, so it functions much like a desk phone. Select your headset as both input and output device in the audio settings, and run the built-in audio test before your first real call.

On Android and iOS the account fields look identical, but the operating system now controls when the app is allowed to stay active. Try an incoming call with the app fully closed before trusting it to work. If the phone is your primary device and background calls get missed, weigh Zoiper's mobile settings against a push-based alternative such as Groundwire.

No matter which version you run, Zoiper's account list holds several SMS Conecta numbers at once. That comes in handy if, say, you keep a US number for clients alongside a UK number for suppliers and need to pick which one shows on each outgoing call.

Receiving calls

With Zoiper registered, incoming calls to your SMS Conecta number ring inside the app. Android and iOS may pause background apps, so look at Zoiper's own push or background mode settings if calls only ring while the app is open on screen.

Running Zoiper on two devices under the same credentials means only the newest registration tends to pick up calls reliably. Set up call forwarding from the dashboard if you also want those calls landing on an ordinary phone.

Outbound caller ID

Calls placed from Zoiper display the SMS Conecta number tied to whichever credentials you entered. Dial using international E.164 formatting (country code first) for the most dependable routing. To call out from a different number, add a second account with that number's credentials and select it before dialing.

Troubleshooting Zoiper

  • 401 or 403 on registration: copy the password fresh from the dashboard (watch for trailing spaces) and confirm the username field carries no extra prefix.
  • Audio in one direction or none at all: NAT is the usual culprit. Turn on STUN in Zoiper's network settings, or switch to TCP transport so the media path sets up properly.
  • Call connects but goes silent or drops immediately: that points to a codec mismatch. Leave only PCMU and PCMA active and try again.
  • Menus ignore your key presses: switch DTMF to RFC 2833 in the account options, or to SIP INFO if the other end expects that instead.

Frequently asked questions

Is Zoiper free when used with SMS Conecta?

Zoiper has a free tier plus paid upgrades; the vendor's site lists current pricing. Either way, the SMS Conecta SIP credentials come included with your number at no extra cost.

Can the same number run in Zoiper on both my phone and laptop?

It can, though for reliable inbound ringing you should keep just one registration active at a time, or forward calls to a second phone from the dashboard.

Which port is best for Zoiper?

UDP or TCP on 5060 suits most situations. Switch to TLS on 5061 if your network interferes with plain SIP traffic.

Why does Zoiper report 'Registration failed'?

That's almost always a typo in the username or password. Re-copy both from the number's page and enter them again.

Can I send SMS through Zoiper on my SMS Conecta number?

SMS sending and reading happens in the dashboard inbox; Zoiper only handles the SIP side, which is calls.

Where do I reorder codecs in Zoiper?

Open the account's settings and find its audio codec list; push G.711 µ-law and A-law to the top and switch off the rest while you test.

Related pages

Sources