Universal Reach
PSTN (Public Switched Telephone Network) permite voice AI să comunice cu orice telefon din lume - mobil, fix, sau VoIP.
PSTN Connection Types
PRI (Primary Rate Interface)
23 voice channels pe o linie T1. Legacy dar încă folosit.
- • 23 channels/line
- • Physical connection
- • High reliability
- • Fixed capacity
SIP Trunking (Recommended)
VoIP connection to PSTN via carrier gateway.
- • Unlimited scalability
- • No physical infrastructure
- • Pay per use
- • Geographic flexibility
Cloud Telephony
Fully managed PSTN access via API (Twilio, etc).
- • Zero infrastructure
- • API-first
- • Global coverage
- • Premium pricing
Call Flow: PSTN to Voice AI
1
Caller dials your number
+40 21 XXX XXXX
2
Local carrier routes call
SS7 signaling through PSTN
3
SIP trunk provider receives call
PSTN → SIP gateway conversion
4
SIP INVITE sent to your platform
Via configured trunk endpoint
5
Voice AI answers and converses
RTP audio stream bidirectional
Number Types
| Type | Format | Cost | Best For |
|---|---|---|---|
| Local DID | +40 21 XXX XXXX | €1-5/month | Regional presence |
| National | +40 31 XXX XXXX | €2-8/month | National coverage |
| Toll-Free | 0800 XXX XXX | €10-20/month + €0.05/min | Customer service |
| Mobile | +40 7XX XXX XXX | €5-15/month | SMS + Voice |
Number Portability
Port-In Process
- 1. Submit LOA (Letter of Authorization)
- 2. Provide current carrier account info
- 3. Wait for carrier approval (3-14 days)
- 4. Number routes to new provider
- 5. Test and verify routing
Requirements
- ✓ Account holder authorization
- ✓ Current carrier account number
- ✓ PIN/password if applicable
- ✓ Most recent invoice
- ✓ No outstanding balance
Global Coverage
Available Countries
Romania
+40
USA
+1
UK
+44
Germany
+49
France
+33
Spain
+34
Italy
+39
Netherlands
+31
Belgium
+32
Austria
+43
Poland
+48
Canada
+1
180+ countries available. Contact us for specific country availability.
Call Quality Metrics
99.9%
Call Completion
<200ms
Post-Dial Delay
4.2
MOS Score
<1%
Failed Calls
Regulatory Compliance
ANCOM (Romania)
- ✓ Number registration required
- ✓ Emergency services (112) support
- ✓ Data retention compliance
- ✓ Lawful intercept capability
EU Regulations
- ✓ GDPR data handling
- ✓ ePrivacy directive
- ✓ BEREC guidelines
- ✓ Cross-border portability