Enterprise SIP Trunking & DID Voice Solutions
Connect your IP-PBX, Vicidial, or Call Center system directly to Pakistan’s leading telecom network powered by Zong 4G. Get local city DID numbers (021, 042, 051), unlimited concurrent channels, and up to 70% voice cost savings.
CMPak Limited (Zong 4G) Enterprise Business Solutions Partner
Powered by Zong 4G Carrier-Grade Enterprise Telecom Infrastructure
AKY Services partners directly with Zong 4G (CMPak) to deliver high-capacity SIP Trunking and DID numbers to businesses, BPOs, and call centers across Pakistan. Benefit from direct fiber interconnects, zero call drops, premium CLI presentation, and dedicated SLA support.
Local Pakistan & International DID Numbers
Assign dedicated city code phone numbers to your enterprise PBX so customers can reach your departments directly.
Karachi
Commercial DIDs for corporate offices & call centers
Lahore
High-concurrency numbers for enterprise support desks
Islamabad / RWP
Government & multinational business connectivity
Faisalabad
Manufacturing & export logistics hotlines
Multan & Sialkot
Export & agriculture enterprise voice trunks
International DIDs
US, UK, UAE, Saudi Arabia, Canada virtual DIDs
Built for High-Volume Enterprise Telephony
Everything you need to run modern corporate communications and high-concurrency call center operations.
Zong 4G Fiber Connectivity
Direct carrier interconnect delivering ultra-low latency, crystal-clear HD audio (G.711, G.729) without jitter.
Direct Inward Dialing (DID)
Dedicated local city phone numbers (021, 042, 051) & virtual numbers mapped straight to your extensions or queues.
Universal PBX Compatibility
Native setup for Asterisk, Vicidial, GoAutoDial, 3CX, FreePBX, Avaya, Cisco CUCM, and Microsoft Teams.
Up to 70% Cost Reduction
Replace expensive legacy PRI/E1 physical lines with digital IP trunks. Pay only for active channels.
Encrypted & Secure Voice
TLS & SRTP encryption protocol to protect call privacy and protect against SIP spoofing and toll fraud.
Real-time CDR & Portal
Comprehensive web dashboard for call analytics, trunk utilization, active channel monitoring, and detailed CDR.
Compatible with Your Existing PBX & Call Center Software
Zero proprietary lock-in. Our Zong SIP Trunks work out-of-the-box with all major open-source and enterprise telephony systems.
SIP Trunking vs Traditional PRI Lines
| Feature | Legacy PRI (T1 / E1) | Zong SIP Trunk (AKY Services) |
|---|---|---|
| Infrastructure | Physical copper / E1 cables | 100% Digital IP over High-Speed Fiber |
| Channel Scalability | Fixed blocks of 30 channels | Instant digital scaling (10 to 1,000+) |
| DID Numbers | Limited local numbering | Karachi, Lahore, ISB & Global DIDs |
| Disaster Recovery | Single point of failure cable | Instant failover to backup IP or Mobile |
| Monthly Cost | High line rental & maintenance | Up to 70% lower recurring costs |
Flexible Enterprise SIP Packages
Tailored for small business PBXs up to 500+ seat outbound call centers.
Starter Trunk
- 10 Concurrent Voice Channels
- 1 Pakistan City DID (021/042/051)
- G.711 / G.729 HD Codecs
- Standard Support & Setup
- Basic Call Analytics
Business Trunk
- 30 Concurrent Voice Channels
- 5 Pakistan City DIDs
- CLI Presentation
- Asterisk & 3CX Pre-configured
- Priority Technical Support
- Failover Routing Protection
Enterprise Call Center
- 100 to 1,000+ Concurrent Channels
- Custom Block of City DIDs + 0800
- Vicidial & GoAutoDial Optimized
- Dedicated Account Manager
- Custom SLA Guarantee (99.99%)
- Advanced Fraud Protection
Frequently Asked Questions
Ready to Deploy Zong SIP Trunking & DID Numbers?
Speak with our telecom specialists today. We’ll design a custom SIP Trunk solution for your IP-PBX or Call Center within 24 hours.