Configure The Sip Timer Values - Cisco 8851 Administration Manual

SIP and NAT Configuration

Configure the SIP Timer Values

Procedure
Step 1
In the phone web user interface, navigate to Admin Login > advanced > Voice > SIP.
Step 2 In the SIP Timer Values section, set the SIP timer values in seconds as described in
on page
Step 3
Click Submit All Changes.
Configure the Response Status Code Handling
Procedure
Step 1 In the phone web user interface, navigate to Admin Login > advanced > Voice > SIP.
Step 2 In the Response Status Code Handling section, set the values as specified:
• Try Backup RSC—SIP response code that retries a backup server for the current request. Defaults to
blank. For example, you can enter numeric values 500 or a combination of numeric values plus wild
cards if multiple values are possible. For the later, you can use 5?? to represent all SIP Response messages
within the 500 range. If you want to use multiple ranges, you can add a comma "," to delimit values of
5?? and 6??.
• Retry Reg RSC—SIP response code that the phone retries registration after failing during the last
registration. Defaults to blank. For example, you can enter numeric values 500 or a combination of
numeric values plus wild cards if multiple values are possible. For the later, you can use 5?? to represent
all SIP Response messages within the 500 range. If you want to use multiple ranges, you can add a
comma "," to delimit values of 5?? and 6??.
Step 3
Click Submit All Changes.
Configure NTP Server
You can configure NTP servers with IPv4 and IPv6. You can also configure NTP server with DHCPv4 option
42 or DHCPv6 option 56. Configuring NTP with Primary NTP Server and Secondary NTP server parameters
has higher priority over configuring NTP with DHCPv4 option 42 or DHCPv6 option 56.
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
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SIP Timer Values (sec),