A Media Proxy for VoIP is a server that relays the audio (RTP) streams of a VoIP call between the calling parties. It acts as an intermediary for the voice data. This is crucial for overcoming network challenges like NAT (Network Address Translation) and firewalls, which can block or misdirect audio, leading to issues like one-way audio or no audio. The entity “Media Proxy” has attributes like “NAT Traversal Capability” and “Audio Stream Encryption.”
Your business typically needs a Media Proxy solution if: 1. You have remote agents working from home networks with consumer-grade routers (NAT issues are common). 2. Your office network has a strict firewall that blocks direct RTP streams. 3. You experience frequent one-way audio or dropped calls. 4. You require secure, encrypted VoIP audio (SRTP) for compliance. 5. You operate a large-scale hosted dialer or SIP trunking service where reliable audio is paramount. Using a proxy media server resolves these by providing a stable, known point for media relay.
RockyDialer’s Media Proxy improves VoIP audio quality through several mechanisms: 1. Intelligent Routing: Selecting optimal, low-latency paths for audio streams via our global network of proxy media nodes. 2. Jitter Buffering: Smoothing out inconsistencies in packet arrival times. 3. Packet Loss Concealment: Minimizing the audible impact of lost data packets. 4. NAT Traversal: Ensuring audio streams are correctly routed despite network address translation, preventing issues like one-way audio. These combined attributes ensure clearer, more reliable calls.
Yes, security is a core attribute of our Media Proxy. We support Secure Real-time Transport Protocol (SRTP) for encrypting the VoIP audio payload itself, and Transport Layer Security (TLS) for encrypting the SIP signaling (call setup information). This end-to-end encryption ensures that your conversations routed through our proxy media servers are protected from eavesdropping and meet high security standards, suitable for businesses in regulated industries.
Our Media Proxy is designed for broad compatibility. It works seamlessly with virtually any standard SIP-based VoIP platform, including Asterisk, FreeSWITCH, Kamalio, OpenSIPS, as well as most commercial PBXs, hosted dialer software (like VICIdial), and all standard SIP-compliant IP phones, softphones, and mobile VoIP applications. The primary function of the proxy media service is to relay RTP, which is a standard protocol, making it universally compatible.
