Step 2
In the
SIP Settings
section, set the parameter values as described in
.
Step 3
Click
Submit All Changes
.
Configure the SIP Proxy Server
Before you begin
Access the phone administration web page. See
Access the Phone Web Page, on page 80
Procedure
Step 1
Select
Voice
>
Ext(n)
, where n is an extension number.
Step 2
In the
Proxy and Registration
section, set the parameter values as described in
Step 3
Click
Submit All Changes
.
Configure the Subscriber Information Parameters
Before you begin
Access the phone administration web page. See
Access the Phone Web Page, on page 80
Procedure
Step 1
Select
Voice
>
Ext(n)
, where n is an extension number.
Step 2
In the
Subscriber Information
section, set the parameter values as described in
Step 3
Click
Submit All Changes
.
Managing NAT Transversal with Phones
Network Address Translation (NAT) allows multiple devices to share a single, public, routable, IP address
to establish connections over the Internet. NAT is present in many broadband access devices to translate public
and private IP addresses. For VoIP to coexist with NAT, NAT traversal is required.
Not all service providers provide NAT traversal. If your service provider does not provide NAT traversal,
you have several options:
• NAT Mapping with Session Border Controller
• NAT Mapping with SIP-ALG Router
• NAT Mapping with a Static IP Address
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
59
Cisco IP Phone Installation
Configure the SIP Proxy Server
