PRI VOICE
Simplified and feature-rich hybrid call management
Diallog’s ISDN PRI and SIP PRI services provide full-featured, two-way connectivity between your existing PBX or Key System and the Public Switched Telephone Network (PSTN). Choose traditional ISDN PRI or modernize with SIP PRI while retaining your existing PRI-based phone system.
ISDN PRI or SIP PRI: Which is Right for Your Business?
Already have a PRI-connected phone system? You may not need to replace it.
Diallog SIP PRI allows you to take advantage of modern SIP-based voice service while continuing to use your existing PBX and phones, helping reduce monthly voice costs without an unnecessary capital investment in a new phone system.
| ISDN PRI | SIP PRI – Modernize & Save | |
|---|---|---|
| Technology | Traditional PRI network service | Modern SIP-based voice service delivered to your existing PRI interface |
| Existing PBX | Keep your existing PRI-compatible PBX | ✓ Keep your existing PRI-compatible PBX |
| Existing Phones | Keep your existing phones | ✓ Keep your existing phones |
| Phone System Upgrade | No phone system replacement required | ✓ Modernize without replacing your PBX or phones |
| Voice Costs | Traditional PRI pricing | ✓ Take advantage of lower-cost SIP technology |
| Best For | Businesses that require traditional ISDN PRI service | ✓ Businesses that want to modernize and reduce costs without replacing their phone system |
Features & functionality
A PRI connection gives your business reliable, high-capacity voice service, supporting up to 23 simultaneous calls on a single connection – ideal for organizations that depend on consistent, professional call handling throughout the day.
Connectivity – Unlimited one or two-way connectivity between your PBX and the PSTN
Crystal Clear Call Quality – With a 64 kbps channel for communication, you’ll always enjoy the highest call quality over the most reliable networks
Call Management – Features such as Direct Inward Dialling and Call Display
Call-by-Call Routing – Control the min. and max. number of calls for a trunk group directly from the PBX
Scalability – Scale Number Structure Consistency and reserve a block of DID numbers to accommodate growth
Business Continuity – Divert incoming calls to an alternate location, ensuring your ability to receive calls is never compromised
Hunting Configurations – Direct calls that reach a busy trunk according to customized, pre-defined structures
Release Line Trunking – Transfer outside calls to another outside number without relying on two B channels to maintain the connection
Why choose Diallog?
All-in-one telecom solution provider
National service provider
Carrier services administration
Continued cost-savings
Multi-location experts
Dedicated account manager
Premise-based services
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