08/05/2026
A foreign-call-centre diagram usually shows:
1. Agent endpoints.
2. Secure access layer such as VPN/firewall.
3. PBX/EPABX or cloud telephony platform.
4. WAN/leased line/MPLS link.
5. PoP with the telecom service provider.
6. Recording, CRM, and log storage.
7. Indian backup site for CDRs/system logs
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