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We currently have 10 offices being served by a SIP trunk coming in to our Corporate Office and services being distributed over MPLS. &nbsp;I have the packets tagged as real time on the PBX. &nbsp;When we reach anywhere around 60% port utilization on the MPLS pipe, the call quality dramatically suffers. &nbsp;<br />
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The UX5000 was qualified as an eligible piece of hardware by our MPLS provider, yet nobody can figure out what the problem is. &nbsp;While I want to replace the system, I don't believe it is in the budget. &nbsp;We are serving well over 250 handsets to the 10 offices I identified. &nbsp;<br />
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Our network team is pointing the finger at the PBX and I point back at the network. &nbsp;I imagine it's a combination of both. &nbsp;I used the configuration guide provided by the vendor, yet no change in quality. &nbsp;I have no audio compression enabled at this time.<br />
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I'm looking for any possibilities to improve the quality. &nbsp;Our vendor has limited exposure to enterprise setup for the NEC system and has no additional input. &nbsp;I can't find any other vendors that are knowledgable about the UX5000.<br />
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Any insight would help
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We currently have 10 offices being served by a SIP trunk coming in to our Corporate Office and services being distributed over MPLS.  I have the packets tagged as real time on the PBX.  When we reach anywhere around 60% port utilization on the MPLS pipe, the call quality dramatically suffers.  

The UX5000 was qualified as an eligible piece of hardware by our MPLS provider, yet nobody can figure out what the problem is.  While I want to replace the system, I don't believe it is in the budget.  We are serving well over 250 handsets to the 10 offices I identified.  

Our network team is pointing the finger at the PBX and I point back at the network.  I imagine it's a combination of both.  I used the configuration guide provided by the vendor, yet no change in quality.  I have no audio compression enabled at this time.

I'm looking for any possibilities to improve the quality.  Our vendor has limited exposure to enterprise setup for the NEC system and has no additional input.  I can't find any other vendors that are knowledgable about the UX5000.

Any insight would help

SIP Trunks with NEC UX5000

We currently have 10 offices being served by a SIP trunk coming in to our Corporate Office and services being distributed over MPLS.  I have the packets tagged as real time on the PBX.  When we reach anywhere around 60% port utilization on the MPLS pipe, the call quality dramatically suffers.  

The UX5000 was qualified as an eligible piece of hardware by our MPLS provider, yet nobody can figure out what the problem is.  While I want to replace the system, I don&#39;t believe it is in the budget.  We are serving well over 250 handsets to the 10 offices I identified.  

Our network team is pointing the finger at the PBX and I point back at the network.  I imagine it&#39;s a combination of both.  I used the configuration guide provided by the vendor, yet no change in quality.  I have no audio compression enabled at this time.

I&#39;m looking for any possibilities to improve the quality.  Our vendor has limited exposure to enterprise setup for the NEC system and has no additional input.  I can&#39;t find any other vendors that are knowledgable about the UX5000.

Any insight would help

IP telephony (Internet Protocol telephony) is a general term for the technologies that use the Internet Protocol's packet-switched connections to exchange voice, fax, and other forms of information that have traditionally been carried over the dedicated circuit-switched connections of the public switched telephone network (PSTN). Using the Internet, calls travel as packets of data on shared lines, avoiding the tolls of the PSTN. The challenge in IP telephony is to deliver the voice, fax, or video packets in a dependable flow to the user.

IP Telephony

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.

Network Architecture

Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service. The term specifically refers to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the public Internet, rather than via the public switched telephone network (PSTN).  Examples of the VoIP protocols are H.323, Media Gateway Control Protocol (MGCP), Session Initiation Protocol (SIP), H.248 (also known as Media Gateway Control (Megaco)), Real-time Transport Protocol (RTP), Real-time Transport Control Protocol (RTCP), Secure Real-time Transport Protocol (SRTP), Session Description Protocol (SDP), and Inter-Asterisk eXchange (IAX).