Inbound Trunks
The DIDWW Inbound SIP Trunking service ensures reliable, scalable, and feature-rich delivery of voice traffic from our global range of local, mobile, and toll-free phone numbers. This service employs a flexible trunk group architecture to protect against individual SIP trunk failures and enables load balancing for maximum scalability and high service availability.
DIDWW supports direct peering and interconnection via VoIP SIP Trunks or TDM, allowing customers to maintain full control over inbound call delivery. This ensures optimal quality, security, and performance for end-to-end voice services.
Key Features
Preferred server selection: Choose specific Points of Presence (POPs) for each SIP trunk to ensure redundancy and low-latency services.
Link failure protection: Trunk groups automatically use alternate links in case of failure, based on configured priorities.
Load balancing: Distribute network traffic among multiple servers for optimal performance. Assign weight factors to define traffic sharing between trunks.
Re-routing disconnect rules: Define conditions for trunk failure and specify alternate routing. Rules are based on standard SIP response codes and DIDWW-specific failure conditions.
Configurable ringing timeouts: Set timeouts for call connection failures, with actions determined by re-routing disconnect rules.
Capacity limits: Set the maximum number of concurrent calls per trunk to manage call volumes effectively.
Supported Delivery Methods
SIP: Incoming calls are delivered to your designated infrastructure using the Session Initiation Protocol (SIP).
PSTN: Incoming calls are routed to your specified telephone number using DIDWW PSTN Termination.
phone.systems™: Calls are distributed via a cloud-based virtual PBX software.
For detailed instructions and additional resources on setting up and managing trunks, refer to the following documentation: