
Avaya CS 1000 digit processing strips the CNTC and adds <AC1 + NATC> to produce
614161234567
Call to a number outside North America
A user initiates a call to a contact with the phone number +41123456789.
The URI incoming for the SIP INVITE for the call is sip:
Avaya CS 1000 digit processing adds <AC1 + INTC> to produce 601141123456789.
Security requirements
The Avaya 3100 Mobile Communicator Gateway requires data access to the ECS TLAN and
uses the ECS SIP Proxy Server (SPS) as the SIP Signaling Proxy. The Avaya 3100 Mobile
Communicator Gateway can accept or transmit real time protocol (RTP) messages to any IP
endpoint in the Enterprise (for example, Media Cards, other SIP clients, or IP telephones).
Figure 3: Sample Avaya 3100 Mobile Communicator Gateway firewall configuration on
page 19 shows a firewall that separates the Avaya 3100 Mobile Communicator Gateway
from the remainder of the Enterprise voice infrastructure. The Avaya 3100 MC - Client for
BlackBerry (without the BES), Avaya 3100 MC - Client for Nokia, and Avaya 3100 MC - Client
for Windows Mobile require access on the internet to a public FQDN and a public IP address.
The figure also shows a sample firewall configuration and policy. For the purposes of this
example assume
• that the Avaya 3100 MC - Client (in the absence of a BES) requires a public FQDN and
IP for the Avaya 3100 Mobile Communicator Gateway to be accessible from the internet.
This in turn forces the Avaya 3100 Mobile Communicator Gateway to be placed in a
demilitarized zone (DMZ).
• Firewalls are used to filter traffic from the internet and from the DMZ to separate the Avaya
3100 Mobile Communicator Gateway and internet from the trusted Enterprise voice
infrastructure where other components on the ECS TLAN reside.
Planning
18 Deployment Guide October 2010
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