DID Numbers & SIP Trunks for Genesys Cloud CX: The Complete Aancall BYOC Guide

23.07.26 10:06 AM - By Akansha .


Aancall is an FCC-registered carrier offering DID numbers, toll-free numbers, and SIP trunks that connect directly into Genesys Cloud CX through Genesys' Bring Your Own Carrier (BYOC) framework. 

If you're evaluating Genesys SIP trunk options, comparing carriers for a Genesys BYOC trunk, or simply need DID numbers for Genesys in a new market, this guide covers how BYOC works, how the integration is done, and why contact centers are choosing Aancall over self-serve carriers like Twilio.

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DID Numbers & SIP Trunks for Genesys Cloud CX: The Complete Aancall BYOC Guide
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What Is BYOC in Genesys Cloud CX?

BYOC — Bring Your Own Carrier — is the telephony model Genesys Cloud CX uses to let businesses connect their contact center to a carrier of their choice instead of relying solely on Genesys' own voice service. In practical terms, BYOC allows businesses to define SIP trunks between Genesys Cloud and third-party carrier devices or carrier services.

Genesys offers two BYOC models, and the one you pick depends on your infrastructure:

  • BYOC Cloud — SIP trunks connect over the public internet directly to Genesys Cloud's Media Tier resources in AWS, using inbound routing methods such as FQDN, TGRP, or DNIS replacement to route calls to the right organization. This is the model most contact centers use with a carrier like Aancall — no on-site hardware required.
  • BYOC Premises — SIP trunks terminate on a premises-based Genesys Edge appliance, useful if you already run on-site session border controllers or have a hybrid deployment.

Either way, the point of BYOC is control: you can establish and maintain your own carrier relationships and manage your own voice costs, rather than being locked into a single provider's number inventory and per-minute rates.



Get Started with BYOC

How Genesys Enables BYOC With Third-Party SIP and DID Providers

Genesys Cloud CX was built with an open telephony architecture specifically so customers aren't stuck with one number and trunking provider. Genesys itself frames it this way: native Genesys voice service is convenient for one-stop shopping in a limited set of countries, but for organizations that need broader geographic coverage, more competitive pricing, or more flexibility, third-party SIP trunking providers give you geographic coverage, pricing, and flexibility advantages that the native service doesn't.


This is exactly why an entire ecosystem of BYOC carriers has grown up around Genesys Cloud CX. Providers like Twilio, Bandwidth, Sinch, and Peerless (now part of Infobip) have all built certified BYOC integrations, and the setup pattern is broadly the same across carriers: you create an External Trunk inside Genesys Cloud under Admin > Telephony > Trunks, select BYOC Carrier, choose a signaling protocol (typically TLS or UDP), and configure the carrier's SIP domain and IP allowlist. 


For example, Bandwidth's documented process has customers log into the Genesys Cloud CX admin console, navigate to Admin, Telephony, Trunks, select External Trunks, and create a new BYOC Carrier trunk before entering their carrier-specific settings.


Once the trunk is active, you're able to make and receive calls from your contact center using your chosen carrier's numbers — and Genesys recommends that any carrier you connect be reliable, redundant, and STIR/SHAKEN-compliant for caller ID authentication and robocall mitigation. Aancall's Genesys BYOC trunks are configured to meet exactly this bar.


Aancall follows the same open BYOC standard — which means switching to Aancall, or adding Aancall as a second carrier alongside your existing one, doesn't require any change to your Genesys Cloud CX platform itself. It's a trunk configuration change, not a platform migration.


Why Genesys Cloud CX Customers Choose Aancall as Their BYOC Carrier

Because Genesys' BYOC framework is carrier-agnostic, the real decision isn't "can I bring my own carrier" — it's "which carrier should I bring." Here's what Aancall brings to Genesys Cloud CX customers specifically:


Same-Day Sign-Up and Trunk Activation

Because Genesys BYOC is an open SIP interface, onboarding with a new carrier doesn't require a platform migration — just a new external trunk configuration. Aancall's team can typically get a Genesys customer signed up, verified, and their first SIP trunk active the same day they reach out.

Numbers Provisioned Within Hours, Not Weeks

Once your trunk is live, Aancall can provision additional local DIDs, national numbers, or toll-free numbers within a few hours of request — not the days-to-weeks timelines that traditional carriers or number porting processes often involve.

Local DID Coverage in 120+ Destinations

Aancall provisions local DID numbers, national numbers, and toll-free numbers across more than 120 countries and territories, including the US, UK, and UAE — all routable into Genesys Cloud CX through a single BYOC SIP trunk. That means a global contact center can consolidate multiple regional number needs under one carrier relationship instead of managing separate local providers per country.

Human-Assisted Provisioning

Most BYOC carriers hand you a self-service console and API documentation and leave the SIP trunk configuration to your own telephony team. Aancall's provisioning is human-assisted — a real person works with you (or your Genesys implementation partner) to configure the External Trunk, inbound routing method, IP allowlisting, and number assignment correctly the first time, rather than leaving trunk-level SIP configuration to trial and error.

Competitive, Transparent Pricing

Aancall's per-minute and per-DID pricing is built to undercut the large self-serve carriers, without hidden platform fees. Since Genesys BYOC is a pass-through SIP interface, the carrier's rate card — not Genesys — is what determines your ongoing telephony spend, so choosing the right carrier has a direct impact on your contact center's cost per call.

Already Proven With Genesys Cloud CX Deployments

Aancall has connected SIP trunks and provisioned DID numbers for Genesys Cloud CX customers before — this isn't a first-time integration. Our team is already familiar with Genesys' External Trunk configuration, FQDN and TGRP-based inbound routing, and the IP allowlisting Genesys requires on the carrier side, so new customers benefit from an onboarding process that's already been tested against live Genesys environments.

Deploy BYOC in Minutes

Aancall vs. Twilio for Genesys Cloud CX BYOC

Twilio Elastic SIP Trunking is one of the most widely used BYOC carriers for Genesys Cloud CX, and it's a genuinely capable platform — it offers phone numbers in approximately 100 countries with a self-service console and API-driven, pay-as-you-go pricing. But "self-service" cuts both ways: 

Twilio's own users note that while the platform is flexible, initial setup can be complicated and requires technical expertise to get right, particularly around SIP trunk configuration, IP access control lists, and inbound routing formats. That's where Aancall is built differently:



FactorAancallTwilio Elastic SIP Trunking
Provisioning modelHuman-assisted — a provisioning specialist configures your trunk and numbers with you  Self-serve console and API; you configure and troubleshoot the trunk yourself
Time to first trunkSame-day sign-up and activationFast, but setup is on you — self-configuration in the console or via API
New number provisioningTypically within a few hours of requestInstant self-purchase, but you own the setup and troubleshooting
Country coverageLocal DIDs in 120+ destinationsNumbers in approximately 100 countries
PricingCompetitive, transparent per-minute and per-DID rates, negotiated directly with a human account contactPublished pay-as-you-go rate card
Support during setupDirect, hands-on support through your Genesys trunk configurationDocumentation, configuration guides, and community/support channels

If your team wants to self-serve every SIP header and IP ACL entry through an API, Twilio is a solid option — Twilio has published joint solution blueprints and worked directly with Genesys to enable Elastic SIP Trunking as a certified BYOC path. But if you'd rather have a carrier's team sit with you through configuration, confirm your inbound routing method, and have your numbers live the same day, Aancall is built for exactly that.

Talk to expert

Setting Up Your Aancall BYOC Trunk on Genesys Cloud CX

Talk to Aancall.

Tell us your number requirements — countries, DID vs. toll-free vs. national, and expected call volume.

Sign up. 

Aancall's onboarding is designed to be completed the same day, with no lengthy contract cycle to get your first trunk live.

We configure the trunk with you.

 Our provisioning team works directly with you (or your Genesys partner) to create the External Trunk in Genesys Cloud CX — Admin > Telephony > Trunks > External Trunks > BYOC Carrier — including protocol, SIP domain, inbound routing method, and IP allowlisting.

Numbers go live

Local DIDs, national numbers, toll-free numbers, or your UAE and other international numbers are provisioned and mapped to your Genesys Cloud CX routing within hours.

Setup your Aancall BYOC Today

Frequently Asked Questions

A Genesys BYOC trunk is a SIP trunk configured inside Genesys Cloud CX that connects your contact center to a carrier of your choice — like Aancall — instead of Genesys' native voice service, using either the BYOC Cloud (internet-based) or BYOC Premises (Edge appliance-based) model.

You create an External Trunk under Admin > Telephony > Trunks in Genesys Cloud CX, select BYOC Carrier, and configure your carrier's protocol, SIP domain, and IP allowlist. Aancall handles this configuration alongside you rather than leaving you to figure it out from documentation alone.

Aancall provisions most local DIDs, national numbers, and toll-free numbers within a few hours of request once your BYOC trunk is active — one of the fastest turnarounds available for Genesys Cloud CX number provisioning.

Yes — US toll-free numbers (800, 888, 877, 866, and other toll-free codes) as well as international toll-free numbers are available and route directly into Genesys Cloud CX over your BYOC SIP trunk.

Yes. UAE DID numbers, along with other Middle East, US, UK, and Asia-Pacific destinations, are part of Aancall's 120+ country coverage for Genesys BYOC customers.

Local DIDs are tied to a specific city or area code, giving callers a local presence. National numbers use a country-wide dialing code instead of a specific region. Aancall provisions both types for Genesys Cloud CX deployments, depending on how your contact center wants to present itself to callers.

Get a Quote for Any DID Number on Genesys Cloud CX

Whether you need a single UAE local number or a full multi-country toll-free rollout for your Genesys Cloud CX contact center, Aancall can have your BYOC SIP trunk configured and your first numbers live the same day.


Get a Quote for your Genesys DID Numbers

Tell us the country, number type, and volume you need — a human on our provisioning team will get back to you with pricing and a same-day setup plan.

Akansha .