SIP setup help

Connect your SIP device

Prepare a softphone, desk phone, PBX or voice platform for IllyVoIP. Check the line, regional endpoint and audio settings before testing calls.

23 guides · 6 questions & answers

Guides

Prepare the connection

Configure a Poly VVX 500 SIP phone with IllyVoIP

Find the VVX web interface, configure one SIP line, understand inherited settings and check calls without changing other accounts.

Connect a Snom D785 SIP phone to IllyVoIP

Set up a Snom D785 identity with IllyVoIP, save registration changes and check which identity handles your calls.

Connect an Asterisk PJSIP trunk to IllyVoIP

Understand the PJSIP registration, auth, endpoint and AOR objects, build a restricted call path and diagnose registration versus routing failures.

Connect FusionPBX to IllyVoIP with a SIP gateway

Add a FusionPBX gateway, choose the right domain and SIP profile, then configure controlled outgoing routes and incoming destinations.

Connect Grandstream DP752 cordless phones to IllyVoIP

Understand profiles, SIP accounts and handset assignments on a DP752 base, then test the correct incoming and outgoing line.

Connect Yeastar P-Series Software Edition to IllyVoIP

Create a registration trunk in Yeastar P-Series, assign permitted extensions and configure incoming calls without confusing trunk types.

Set up a Cisco 8800 MPP phone with IllyVoIP

Check Cisco MPP firmware, configure a SIP extension and avoid confusing the phone’s local SIP port with the server port.

Set up a Fanvil X4U V2 phone with IllyVoIP

Configure the SIP line on a Fanvil X4U V2, match authentication fields and check the refreshed registration status.

Set up a Grandstream GRP phone with IllyVoIP

Configure a Grandstream GRP SIP account, distinguish the user ID from the phone label and troubleshoot registration.

Set up a Grandstream UCM6300 SIP trunk with IllyVoIP

Create a UCM6300 registration trunk, assign outbound permissions and incoming rules, and troubleshoot calls separately from registration.

Set up a Yealink desk phone with IllyVoIP

Connect a Yealink T4 or T5 SIP phone, match its account fields to IllyVoIP and check outgoing and incoming calls.

Set up a Yealink W70B DECT base and handsets

Pair a Yealink handset, register the W70B to IllyVoIP and assign incoming and outgoing lines to the correct handset.

Set up an IllyVoIP PJSIP trunk in FreePBX

Configure a FreePBX PJSIP trunk, restrict an outgoing test route and send incoming calls to the correct extension or ring group.

Set up Gigaset N510 IP PRO with IllyVoIP

Configure an N510 VoIP connection and assign separate sending and receiving connections to each cordless handset.

Use an analog phone with Grandstream HT801 or HT802 V2

Connect an analog handset to an HT801/HT802 V2, register the right FXS port and troubleshoot dial tone, ringing and calls.

Where do I find my connection details?

Open SIP Lines in the portal. Use the credentials for the SIP line you intend to connect and expand Technical endpoints for current server, transport and codec information. Keep passwords private.

Which regional server should I use?

The portal lists Germany, United States and Singapore endpoints. Match the hostname to the region chosen for your setup. Use the hostname, rather than an IP address, for TLS or WSS connections.

How do signaling and audio settings differ?

SIP over TLS protects signaling. Call audio has a separate setting: Standard RTP, SDES-SRTP or DTLS-SRTP. Match the SIP line’s audio mode to your device. Standard RTP is not encrypted; enabling TLS alone does not select an encrypted audio mode.

Check the result

What if authentication keeps failing?

Check the SIP username, authentication method, password and server against the selected line. A 401 or 407 challenge can be part of normal authentication; repeated failures need the full sequence and response text to diagnose.

What if a call connects with no audio?

Compare the device’s audio mode with the SIP line setting and check the selected audio devices. For a PBX or SIP phone, have your administrator review the media path and network configuration. Include whether the issue affects one or both directions when asking for help.

Does registering a device route incoming calls to it?

Configure the phone number’s incoming destination separately. Registration establishes the device connection; the number’s route determines where an incoming call is sent.

Need a hand?

Open account support for a specific issue, or contact us to discuss your setup.

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