Avaya Mobile Communication 3100 Planning and Engineering Instrukcja Użytkownika Pobierz pdf (Strona 16)

16 Planning

CS 1000 digit processing adds <AC1 + INTC> to produce

00014161234567

Example 2 (North America)

ECS is CS 1000

AC1=6, CNTC=1, NATC=1, INTC=011

Call to a number within North America

A user initiates a call to a contact with the phone number +14161234567.

The URI incoming for the SIP INVITE for the call is

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

CS 1000 digit processing adds <AC1 + INTC> to produce

601141123456789.

Security requirements

The MCG 3100 requires data access to the ECS TLAN and uses the ECS

SIP Proxy Server (SPS) as the SIP Signaling Proxy. The MCG 3100 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 MCG 3100 firewall configuration" (page 17) shows a

firewall that separates the MCG 3100 from the remainder of the Enterprise

voice infastructure. The MCC 3100 for BlackBerry (without the BES),

MCC 3100 for Nokia, and MCC 3100 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 MCC 3100 (in the absence of a BES) requires a public FQDN

and IP for the MCG 3100 to be accessible from the internet. This in

turn forces the MCG 3100 to be placed in a demilitarized zone (DMZ).

• Firewalls are used to filter traffic from the internet and from the DMZ to

separate the MCG 3100 and internet from the trusted Enterprise voice

infrastructure where other components on the ECS TLAN reside.

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Nortel Mobile Communication 3100 Planning and Engineering

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Avaya Mobile Communication 3100 Planning and Engineering Instrukcja Użytkownika Strona 16