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Home > Services > SIP-Trunk ➤ Connection of the SIP trunk service in Telnexx
SIP-Trunk

SIP-Trunk

SIP Trunk is a service for companies looking to connect their office telephony to a telephony provider via the internet and ditch outdated analog lines. This trunk can handle multiple simultaneous calls and connect to an office IP PBX, virtual PBX, CRM, or call center. The solution is suitable for sales departments, support, logistics, online stores, and distributed teams.

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Replacement of classic telephone lines

SIP Trunk transmits voice over the internet, eliminating the need for companies to install separate phone lines or rely on legacy office infrastructure. This is convenient for businesses looking to modernize their communications without a complex migration.

Communications for offices, branches, and remote teams

This service unites employees, departments, and branches into a single telephony environment. Calls can be routed to a PBX, cloud platform, IP phones, softphones, or CRM.

Control of costs and communication quality

The solution allows you to manage the number of voice channels, distribute the workload, and analyze calls. The company gains a transparent telephony plan and easily adapts communications to growth.

Advantages of SIP Trunks

Quick Launch

Connection is made via the Internet without installing physical telephone lines.

Scalability

The number of channels can be changed to suit seasonal load and team growth.

Budget savings

SIP Trunk reduces the costs of traditional telephony service and makes costs clearer.

Flexible routing

Calls can be routed to different departments, numbers, branches, or backup destinations.

Compatibility

The service works with IP-PBX, virtual PBX, SIP devices and softphones.

Reliability

Backup scenarios help maintain connectivity during load changes or technical failures.

SIP Trunk Capabilities

1

Multi-channel calls

One channel supports multiple simultaneous incoming and outgoing calls.

2

Connecting numbers

You can use landline, mobile, international and multi-channel numbers for different purposes.

3

Outgoing call

The company receives stable outbound calls for sales, support, and customer service.

4

Incoming routing

Calls are routed to PBXs, departments, employees, branches, or backup numbers.

5

Integration with CRM

Call data is transferred to the CRM for call history and application control.

6

Communication reservation

Alternate routes reduce the risk of lost calls and help maintain telephony availability.

SIP Trunk connection steps

1

Task analysis

We determine the number of phone numbers, channels, users, and the call handling setup.

2

Configuration selection

We agree on the SIP Trunk parameters, routing, and requirements for equipment or PBX.

3

Service setup

We configure credentials, phone numbers, routing destinations, and integrations.

4

Testing and launch

We test incoming and outgoing calls, call quality, and backup routing scenarios.

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Integration with CRM systems, AI, and other messaging platforms

Amazon Pipedrive Ribbon Genesys Hubspot Monday Salesforce Pabbly Zapier Zendesk Zoho

SIP Trunk Pricing

Number of channels

1 channel

Currency

USD

Connection
USD 5.00
Connection
USD 5.00

Frequently asked questions about SIP Trunk

What is SIP Trunk in simple terms?

SIP Trunk is a virtual communication channel between your phone system and the telecom operator. It carries calls over the internet and replaces traditional phone lines.

How does SIP Trunk differ from a virtual PBX?

A virtual PBX manages calls in the cloud: it routes calls, records conversations, and creates extensions. SIP Trunk is most often used as the connection channel between the telecom operator and your PBX or another telephony system.

What equipment is required for connection?

Usually, you need an IP PBX, virtual PBX, SIP gateway, IP phone, or software softphone. The exact setup depends on your infrastructure and requirements.

How many simultaneous calls does the service support?

The number of simultaneous calls depends on the number of connected voice channels. You can scale them to match current load, seasonal peaks, and team growth.

Can I use my existing phone numbers?

Yes. In most cases, you can connect numbers you already use or choose new numbers for incoming and outgoing calls. Availability and conditions depend on the country, carrier, and number type.

Is this connection secure for business?

Yes, provided access credentials, passwords, IP restrictions, and routing are configured correctly. It is important to use a reliable network and review the settings regularly.

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