Specifiction
For vendors
AdvertiseTop spots, featured rows, home sponsor Get listedAdd a product we don't cover yet Claim a listingFree: verify the domain, then correct your page Vendor dashboardNumbers, orders and placements
List your tool
Vendor dashboard
Tech riderRev. 9 Oct 2026

AT&T IP Flexible Reach

Ch 156.3of 30SIP Trunking Providers
  1. 1Runs onWeb
  2. 2Pricing modelhybrid
  3. 3Concurrent channels6 channels
  4. 4Emergency callingYes
4 lines stated Written from the maker's own pages: business.att.com
Visit site Alternatives
The AT&T IP Flexible Reach homepage

Overview

AT&T IP Flexible Reach is ranked #15 of 30 in SIP trunking providers on Specifiction. It runs on Web.

AT&T IP Flexible Reach plans and pricing

All plans
AT&T IP Flexible Reach Pricing not listed; contact AT&T for sales information business.att.com · 9 Oct 2026

Compared on SIP trunking providers

Pricing model
hybridbusiness.att.com
Concurrent channels
6 channelsbusiness.att.com
Emergency calling
Yesbusiness.att.com

Facts

What it does
AT&T IP Flexible Reach is a SIP trunking service for businesses using existing premises-based telephony equipment, providing inbound, outbound, local, and long-distance calling.business.att.com · 9 Oct 2026
Voice and data
The service combines voice and data over an integrated access circuit to simplify network management and optimize capacity.business.att.com · 9 Oct 2026
Existing equipment
Businesses can use their current voice equipment and add SIP trunking to an existing PBX.business.att.com · 9 Oct 2026
Scalable channels
Customers can increase or decrease concurrent call channels and pay for the number of lines they need.business.att.com · 9 Oct 2026
Microsoft Teams
The service integrates with premises-based or cloud-based Microsoft Teams PBX to connect to the public switched telephone network.business.att.com · 9 Oct 2026
Call routing
On-net VoIP-to-VoIP calls route within AT&T’s IP network and do not incur additional charges.business.att.com · 9 Oct 2026
Network
AT&T says calls are carried on its MPLS network rather than the public internet.business.att.com · 9 Oct 2026
Branch offices
Branch office extensions can share trunks across multiple locations.business.att.com · 9 Oct 2026
Virtual numbers
Virtual telephone numbers can give a phone local visibility when it is outside the location’s local calling area.business.att.com · 9 Oct 2026
Management portal
A web-based portal provides performance reporting, call detail reporting, and e-ordering.business.att.com · 9 Oct 2026
Network access requirement
Connecting to the AT&T network requires AT&T Dedicated Internet Service or AT&T Virtual Private Network for high-speed dedicated access.business.att.com · 9 Oct 2026
Call rate limit
AT&T says there is no limit on the number of calls the service can originate per second.business.att.com · 9 Oct 2026
Microsoft Teams SBC
For Teams integration, customers can use their own Microsoft Teams-certified Session Border Controller or have AT&T host and manage it.business.att.com · 9 Oct 2026
Sales support
AT&T lists sales assistance at 877-287-5676, Monday through Friday, 7 a.m. to 7 p.m. Central Time.business.att.com · 9 Oct 2026

Company

Founded
1885business.att.com · 28 Sept 2026
Headquarters
Dallas, Texas, United Statesbusiness.att.com · 28 Sept 2026

Best AT&T IP Flexible Reach alternatives

See all 20
All accessCh 01 Twilio Segment Free planFree trialWeb from $120/mo7.6 All accessCh 02 Callcentric SIP Trunking Free planAndroidBrowser Free to start7.5 All accessCh 03 Bandwidth Messaging API Free trialAPIWeb 7.4 All accessCh 04 SIP.US Cloud SIP Trunking Free trialAndroidAPI from $1/mo7.2 All accessCh 05 BulkVS SIP Trunking APIWeb from $0.01/mo7.0 All accessCh 06 Sangoma Carrier Voice AndroidAPI 6.9

Where it ranks on Specifiction

Is AT&T IP Flexible Reach yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote AT&T IP Flexible Reach

Sources