UC500 with SIP Trunking service. Scope This document is intended to aid SP integration teams & Cisco partners (VARs) responsible for configuring and / or testing UC500 for SIP Trunking services. It addresses the Cisco Configuration Assistant (CCA) for UC500 &...
Cisco strongly recommends that providers have a well defined demarcation point such as a Cisco IAD / ISR that is managed by the provider & provides network access services for IP voice and data traffic. The Managed Access router provides: NAT ALG functionality QoS for SIP Trunk calls &...
Securing IP Telephony installations such UC500 is a topic that is beyond the scope of this document. Security is an area in which VARs may provide additional value to customers, if executed properly. Cisco’s IOS firewall, for example, can be configured on UC500 to enable the appropriate access-lists and other elements of the firewall.
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“VLAN 1”, “Voice VLAN 100”, and the subnets depicted can be modified by the VAR or end-customer to suit customer requirements. • PCs may or may not be attached through Cisco IP phones according to customer preference, but the maximum number of ports supported by UC500 is 48.
3 Requirements Hardware Requirements The UC500 appliance, supported Cisco IP phones, and a service provider managed access router (highly recommended). An Uninterruptible Power Supply (UPS) is strongly recommended for UC500, which runs the embedded Unity Express module. This appliance is fairly robust but nevertheless subject to errors in the event of sudden power loss.
4 Configuration The UC500 may be configured with either the Cisco Configuration Assistant (CCA) or command line interface (CLI). This guide documents the CCA configurations tasks as far as possible with CLI used only to customize the template further to work with the provider.
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SIP Trunking takes place, and will be addressed in the next section of this document. Cisco recommends that VARs leave the “Switching”, “Routing”, “Smartports” & “Ports” portions at their default settings unless integration into the provider network requires the addition of IP interfaces, VLANs or static routing decisions etc.
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DNS settings are applied for PCs based on the SP requirement or if the VAR / customer intend to change the default DHCP configuration. Cisco recommends that VARs leave this alone unless there is a compelling need for this.
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1 g729r8 sip-ua g729-annexb override Also, transcoding is required in this case especially when going to voicemail (Cisco Unity Express) as that only supports G711ulaw. A sample transcoding configuration on UC500 can be done as shown below: a. Find the MAC address to be used for transcoder: UC500#sh int vlan 100 | inc bia Hardware is EtherSVI, address is 001b.8fa8.4282 (bia 001b.8fa8.4282)
4.4.4.3 For modem support – the UC500 supports G.711 upspeed via proprietary methods – support is being added to Cisco IOS to upspeed to G.711 via a SIP re- Invite as proposed in SIPConnect forum. 4.4.5 Outbound proxy support This feature allows the UC500 to send all SIP packets to a specific IP address or DNS instead of the IP / DNS of the proxy server defined in section 4.3.20.
“AS IS”. Users take full responsibility for the application of the specifications and information in this guide. In no event shall Cisco or its suppliers be liable for any indirect, special, consequential, or incidental damages, including,...