Connecting Your Router - Cisco 525 Administrator's Manual

Horizon service

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Connect the computer cable to the underside of the phone in the socket marked SW.

Connecting to your router

Before connecting the service, make sure your router is set up to perform NAT (Network Address

Translation) and act as a DHCP server - normally a default setting on most routers (a fixed IP address

is not supported).

Next, plug the Ethernet cable from the phone into your router. Once powered up, an IP address should

automatically be allocated to the phone through DHCP. It's also important to make sure the following

ports are not blocked by the firewall within your router or at any point through your access provider.

80 TCP

443 TCP

53 UDP

123 UDP

If any of these ports are not open - i.e. a network based or company firewall is blocking them -

Horizon will not work.

Access to the Horizon platform also needs unrestricted phone access to the following Internet

Protocols within the Gamma network. The initial remote access request from the handsets, once

plugged in, will be to resolve one of these URLs:

All these URLs will resolve to one of the following IP addresses:

Provisioning IP's = 88.215.61.171 & 173, 88.215.61.193 & 194 -

The Gamma Access SBC (general call traffic), ntp.business-access.co.uk (88.215.61.81 or 82)

The information contained within this document, or subsequently provided, whether verbally or in documentary form, is confidential to Gamma and is provided to

the organisation named within this document only. It shall not be published, disclosed or reproduced wholly or in part to any other party without our prior written

consent. Gamma has made all reasonable efforts to ensure the accuracy and validity of the information provided herein and we make no warranties or

representations as to its accuracy. Gamma should be notified of all requests for disclosure of Gamma supplied information under the Freedom of Information Act.

http://xsp.unlimitedhorizon.co.uk:80/dms/Cisco_502d/502.xml

http://xsp.unlimitedhorizon.co.uk:80/dms/Cisco_504d/504.xml

http://xsp.unlimitedhorizon.co.uk:80/dms/Cisco_501d/501.xml

http://xsp.unlimitedhorizon.co.uk:80/dms/Cisco_2102/2102.xml

http://xsp.unlimitedhorizon.co.uk:80/dms/Cisco_525d/525.xml

http://xsp.unlimitedhorizon.co.uk:80/dms/Cisco_122/122.xml

10000 to 60000 UDP

ICMP

SIP ALG disabled

5060 &5062 TCP/UDP

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