SIP trunking for contact centers

A contact center already runs a PBX or telephony software. TELQIO provides carrier connectivity over SIP and a usable call log, without forcing you to change your agent tools.

The problem

A contact center relies on a line that has to stay reachable and readable. When a call fails, the question is immediate: the carrier network, the SIP configuration, the capacity, or the number dialled? Without a precise technical log, every incident turns into an email chain.

Capacity is another matter. Peaks of simultaneous calls, a fallback destination when a link drops and the separation of traffic by campaign are decided at design time, not during the incident.

How it flows

Center PBX
SIP trunk
Carrier network
CDR log
Fallback destination

Example journey

Contact centers

01

Scoping the connection

A fictional contact center describes its PBX, its sending IP addresses, its codecs and the number of simultaneous calls it wants to carry.

02

Trunk configuration

The wizard offers IP or credential authentication, transport and codecs, and shows what was actually negotiated.

03

Simulated, then pre-production test

A test call is placed to a verified number before any traffic is switched.

04

Detailed log

Each call appears with its direction, duration, status and a technical reference that support can look up.

05

Fallback destination

If the primary trunk is unavailable, traffic goes to a fallback destination defined in advance.

Limits to know

  • Capacity, codecs and negotiable SIP features depend on the partner carrier and the contract. Nothing is guaranteed before validation.
  • A fallback destination protects against a link being unavailable, not against a misconfigured PBX.
  • Call recording is an option, off by default, with configurable retention.

Frequently asked questions

Do I have to replace my PBX?

No. The SIP trunk connects your existing PBX. You keep your agent tools.

How do I diagnose a failed call?

The log shows the status and a technical reference. SIP details expand for technical teams, and no cause is invented when it is unknown.

Let us scope your connection

Target simultaneous calls, countries, traffic direction and existing equipment are enough to start the conversation.