Asterisk VoIP Consultants and Cloud PBX specialists

Consulting derived from experience.
Expertise accumulated from real world situations.
A customer service oriented approach delivering results.

That is VoIP Citadel

VoIP can be a challenge! We know, and we’re here to help resolve your VoIP issues. Consisting of experienced veteran asterisk consultants, VoIP Citadel has a proven track record established through results. Whether you need help with an Enterprise sized Call Center in Houston, a 5 seat office in Dallas, or with remote call center users distributed world wide, contact us today to see if we can help resolve your VoIP issues!

VoIP Citadel offers Asterisk consulting services for a wide array of business telephony needs. From small businesses to large enterprises, VoIP Citadel’s decades of real world experience ensures our clients receive the absolute best in support, implementation, and customer service.

VoIP Citadel specializes in cloud & premise based Asterisk phone systems.  Including FreePBX, PBXAct, PBX in a Flash, Thirdlane, and many other Asterisk based PBXs.

Interested in a Cloud PBX? Curious how a Cloud Phone System can improve efficiencies?

Check out our Cloud Phone system features here!

VoIP Info, Devices, News, & Updates


Multiple Options for Overhead Paging speakers
Various options exist that interface directly with your SIP PBX enabling over-head paging functionality in a myriad of environments

Algo 8188 SIP Ceiling Speaker

Algo 8188
Ceiling Speaker
PoE powered
Wideband Audio

The 8188 Ceiling Speaker is a SIP speaker used in drop ceilings for over-head paging. The speaker is a fully compliant SIP endpoint compatible with SIP based hosted/cloud and premise-based telephone systems.


Algo 8186 SIP Speaker Horn

Algo 8186
PoE powered
Fully SIP compliant
Wideband Speaker Horn

The 8186 PoE capable SIP horn is an outdoor-rated IP speaker for voice paging and loud ringing applications. This IP speaker is a fully compliant SIP endpoint compatible with SIP based hosted/cloud and premise-based telephone systems.


Algo 8189 Surface Mount SIP Ceiling Speaker

Algo 8189
Drop Ceiling
PoE powered
CE Certified

The PoE 8189 SIP Surface Mount Speaker is identical to the 8188 SIP Ceiling Speaker, however, it has been designed to be used in indoor surface mount ceiling or wall applications. The speaker is a fully compliant, self-amplified SIP endpoint. As a result, the Algo 8189 IP speaker is compatible with SIP based hosted/cloud and premise-based telephone systems.


For more information on the how VoIP Citadel can help with your SIP overhead paging needs, or if you have questions about paging with your IP PBX Contact us today!

Asterisk PBX Consultants

VoIP Citadel is your one-stop-shop for everything Asterisk!

Specializing in Open source VoIP, hosted PBXs and SIP convergence, VoIP Citadel offers Asterisk support, troubleshooting, administration and management services as well as an array of VoIP and telecommunications innovations nationwide.

No Job is too big or too small!

Experienced Asterisk Consultants

VoIP Citadel's staff has real-world experience with Asterisk and it's derviatives such as FreePBX, PBXAct, PBX in a Flash, Trixbox and Thirdlane. We are available regardless of time of day due to the importance of your commmunication systems maintaining continuity. We understand the value a communication platform provides and will work to ensure your organization is able to leverage your PBX accordingly!

If you would like to find out more, or see how we can help you please contact us today.

Hosted Cloud PBX

Interested in a professionally managed cloud PBX? Interested in managing your own cloud PBX with expert support available if you hit a snag? Contact us today to see how much we can save you by moving to the cloud!

The Open Source Asterisk Project

Asterisk is robust & mature enough to support a myriad of installations - from 5 seat cloud based phone systems to 500+ seat premise based contact center solutions implementing redundancy. The most liberating aspect of Asterisk is the features set and the associated licensing. While more features are added with every release, licenses for typical resources such as voicemails, extensions, and even auto-dialers no longer exist. Open Source telephony has truly revolutionized the PBX market while continuing to embrace legacy PBX features.