SIP trunking replaces traditional PRI lines and analog POTS lines with a modern IP-based connection. Instead of dedicated physical lines, your PBX connects to the telephone network over your internet connection.
1. Cost Savings (40-60%)
SIP trunking typically reduces phone costs by 40-60% compared to PRI:
- ✓ No physical line installation fees
- ✓ Lower per-minute calling rates
- ✓ Pay only for the channels you need
- ✓ Free calls between locations
2. Instant Scalability
Add or remove channels in minutes, not weeks:
- ✓ PRI requires 23 channels minimum; SIP is 1+
- ✓ Scale up for busy seasons instantly
- ✓ No waiting for telco technicians
3. Geographic Flexibility
Get local numbers anywhere in the country:
- ✓ Local presence in any city without an office
- ✓ Toll-free and international numbers
- ✓ Keep numbers when you move
4. Business Continuity
Built-in disaster recovery capabilities:
- ✓ Automatic failover to backup locations
- ✓ Route calls to cell phones if office is down
- ✓ Geographic redundancy
5. HD Voice Quality
Better audio than traditional phone lines:
- ✓ Wideband codecs (G.722, Opus)
- ✓ Clearer calls, less strain
- ✓ Better for conference calls
6-10: More Benefits
6. Unified Communications
Integrate voice, video, messaging on one platform
7. No Hardware Lock-in
Use any SIP-compatible PBX or phones
8. Advanced Features
Caller ID, call recording, analytics
9. Easy Number Porting
Keep your existing phone numbers
10. Future-Proof
PRI and POTS are being phased out. SIP is the future of business communications.
SIP vs PRI vs POTS Comparison
| Feature | SIP Trunk | PRI | POTS |
|---|---|---|---|
| Channels | 1 to unlimited | 23 fixed | 1 per line |
| Setup time | Minutes | 2-4 weeks | 1-2 weeks |
| HD Voice | Yes | No | No |
| Failover | Built-in | Extra cost | No |
| Cost/month | ~$20-50/trunk | $300-500 | $30-50/line |
Ready to Switch to SIP?
IPComms provides reliable SIP trunking with transparent pricing. Get a free test trunk today.