High maintenance costs
Spare parts for legacy PABX are scarce and expensive. Finding technicians who can service Panasonic KX, NEC SL1000, or Siemens HiPath is increasingly difficult.
Why Migrate?
Problems with legacy analog phone systems
Analog PBX systems served businesses well for decades, but they are now a liability — expensive to maintain, impossible to scale, and incompatible with modern work.
No remote work support
Analog phones are tied to a physical desk. Cloud PBX lets staff make and receive calls from anywhere — mobile, laptop, or home — using the same office extension.
Cannot scale or integrate
Adding extensions to an analog PBX requires physical wiring. Modern IP PBX scales with a click and integrates with CRM, Microsoft Teams, call recording, and analytics.
3 Migration Options
Choose the right migration path for your business
SIPPER offers three migration approaches — from a complete rip-and-replace to a gradual hybrid transition. We recommend the best option based on your budget, timeline, and existing infrastructure.
Full Migration to Cloud PBX / IP PBX
Replace the entire analog system with Yeastar Cloud PBX or on-premise IP PBX. All extensions become IP phones or softphones. SIPPER handles number porting, cutover planning, and zero-downtime migration.
Hybrid: Analog + IP Together
Keep working analog phones and connect them to the new IP PBX via VoIP Gateway (Yeastar TA, Grandstream HT, Dinstar DAG). Migrate floor-by-floor or department-by-department at your own pace.
SIP Trunk on Analog PBX
Keep your existing analog PBX but replace ISDN/E1/analog trunk lines with SIP Trunk via a VoIP Gateway. Reduce call costs immediately without changing any phones or workflows.
VoIP Gateway
What is a VoIP Gateway and why do you need one?
A VoIP Gateway converts analog signals (FXS/FXO) to SIP/IP — bridging your legacy phones and PSTN lines with a modern IP PBX or Cloud PBX. It is the key device that makes hybrid and gradual migration possible.
Yeastar TA Series
FXS gateways (TA400/TA800/TA1600/TA2400/TA3200) and FXO gateways (TA410/TA810/TA1610/TA3210). Seamless integration with Yeastar P-Series PBX. Auto-provisioning and centralized management.
Dinstar DAG Series
FXS (2–312 ports), FXO (2–16 ports), and Hybrid gateways. Cost-effective for large port counts. Compatible with Yeastar, 3CX, Asterisk, Cisco, and Avaya. Power failover for business continuity.
Grandstream GXW/HT Series
Compact FXS/FXO gateways for small offices. GXW4216 (16 FXS), GXW4232 (32 FXS), HT812/HT814 (2–4 FXS). Budget-friendly with proven SIP compatibility.
Migration Process
How SIPPER migrates your phone system
A structured 5-step process ensures zero-downtime migration with minimal disruption to your daily operations.
1. Site Survey
SIPPER engineers visit your site to audit the existing analog PBX — count extensions, trunk lines, fax machines, paging, and special devices. We map every phone number and call flow.
2. Solution Design
We design the target system — Cloud PBX or on-premise IP PBX, SIP Trunk, VoIP Gateway configuration, IP phone selection, network readiness, and cutover plan.
3. Installation & Testing
Pre-configure all equipment at SIPPER office, install on-site, connect VoIP Gateways, port numbers, and run end-to-end call testing before cutover.
4. Training
Train reception, admin, and IT staff on the new phone system — making calls, transferring, voicemail, mobile app, and PBX admin portal.
5. Support & Maintenance
SIPPER provides ongoing managed support — PBX configuration changes, VoIP Gateway monitoring, SIP Trunk management, and 8x5 helpdesk. One phone number for all voice issues.
FAQ
Common questions about analog-to-IP migration
How long does it take to migrate from analog to Cloud PBX?
A typical migration for a 50–100 extension office takes 2–4 weeks: 1 week site survey and design, 1 week equipment procurement, 1–2 weeks installation and cutover. Larger organizations or multi-site migrations may take 4–8 weeks. SIPPER plans the cutover during off-hours to minimize disruption.
Do I need to change my existing phone numbers?
No. SIPPER handles full number porting from your current provider to SIPPER SIP Trunk. All your existing DID numbers, hotline numbers, and fax numbers are preserved. The porting process takes 3–5 business days with zero downtime if planned correctly.
Can analog phones and IP phones really work together?
Yes. A VoIP Gateway (like Yeastar TA800 or Dinstar DAG1000) converts analog signals to SIP. Your existing analog phones connect to the gateway, which registers as SIP extensions on the IP PBX. Users on analog and IP phones can call each other seamlessly.
What is a VoIP Gateway and why do I need one?
A VoIP Gateway is a device that converts analog voice signals (FXS/FXO) to digital SIP/IP packets. You need it when: (1) keeping existing analog phones in a hybrid setup, (2) connecting PSTN analog trunk lines to an IP PBX, or (3) connecting fax machines, paging systems, or elevator phones that only work on analog lines.
How much does an analog-to-IP migration cost?
Cost depends on the number of extensions, whether you choose full or hybrid migration, and the PBX platform. A 20-extension full migration to Cloud PBX starts around ฿80,000–120,000 (one-time) plus ฿5,000–10,000/month. Hybrid migration with VoIP Gateway can start from ฿30,000 for the gateway alone. SIPPER provides a detailed quote after the site survey.
Request Quote
Get a free analog-to-IP migration assessment.
Tell us about your current phone system — number of extensions, PBX brand, trunk lines, and pain points — and SIPPER will design a migration plan with a clear timeline and budget.