endstream.net

What It Is

Endstream Communications was founded in 2007 and is headquartered in New York. It is a facilities-based VoIP carrier that primarily offers wholesale VoIP termination, DID, Toll-Free, Calling Card, SIP Trunking, PRI/Virtual POTS, E-Fax, internet access, and data center colocation. Its positioning is closer to traditional telecom wholesale and enterprise voice trunking services than to a developer-oriented cloud communications API platform.

Core Capabilities

In terms of channels, Endstream focuses on voice communications, covering VoIP termination, inbound DID, Toll-Free inbound/outbound calling, calling card platforms, and SIP Trunks. For coverage, its DID service mentions more than 3,000 markets in the United States and 30 countries, while Toll-Free covers over 3,000 rate centers in the United States and 10 countries. Calling Card services can also provide U.S. and European numbers. On the technical integration side, it supports SIPv2, H.323, Asterisk, DTMF, T.38 fax, and codecs such as G.729, G.711, and G.723.1, and provides CDRs, making it suitable for customers with existing PBX, softswitch, or call center systems.

Pricing and Performance

Its public materials emphasize “high quality, low cost” service and volume/commitment-based discounts, but full rate sheets require contacting the company by email. Inbound DID supports per-minute or flat-rate pricing, while Toll-Free is billed per minute with volume discounts. The FAQ mentions that SIP Trunks are typically around USD 20-25 per trunk, with long-distance rates potentially below 2 cents per call. In terms of performance, the website describes in-house SoftSwitch clusters, multiple POPs, premium U.S. routing, and some Tier 1 international routing, but it does not provide hard metrics such as SLA, ASR, ACD, latency, or availability.

Pros and Cons

The advantages are broad U.S. local number resources, strong protocol compatibility, support for number porting, CDRs, fax, and multiple payment methods, making it suitable for wholesale carriers, BPOs, call centers, and enterprises with high voice traffic. The drawbacks are limited public transparency: rates require a quote, API documentation is missing, and compliance, security, anti-fraud measures, and service-level commitments are not clearly disclosed. It is not ideal for teams that want fast self-service onboarding, REST APIs, or global SMS/email channels.

Best Fit and Access from China

Endstream is better suited to service providers and enterprises with telecom technical capabilities that need U.S./international voice routing, DID, Toll-Free, or SIP Trunk services. The text does not state how well the service can be accessed from mainland China. Payments support ACH, wire transfer, PayPal, and credit cards, but there is no information on RMB payments, invoicing, or local support. If you serve Chinese customers or need locally compliant voice/SMS services, consider Alibaba Cloud, Tencent Cloud, and carrier-based solutions; if you need global developer APIs, compare Twilio, Telnyx, Bandwidth, Vonage, and Plivo.