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3.5.2 Proxy
To modify the SIP proxy parameters, from “
main menu
”
→
“
settings
”
→
“
VoIP settings
”:
1. Select “Proxy” and press OK.
2. Select the parameter you wish to modify and make the desired
changes. Modifiable parameters are:
•
Proxy port
: default is 5060
•
NAT/Timer
: set to keep broadband connectivity through a
firewall. The options are 30 secs., 45 secs., 1 min., 1.5 min., 2
min., 2.5 min., 3 min., and 5 min.
3.5.3 Registration
If a broadband profile, section 3.1, Network Parameter, section 3.6.4 or WiFI parameter, section 3.6.5 is
changed, the phone must be re-registered with the service provider for
proper operation,
To manual register the IP PHONE 1535, from “
main menu
”
→
“
settings
”
→
“
VoIP settings
”:
1. Select “Registration” and press OK.
2. Select “Register” and press OK.
3.5.4 Expires
For SIP service, the end-point must periodically register with the SIP server to continue proper operation.
The IP PHONE 1535 can be configured with a preferred registration interval or Registration expiration
period. The IP PHONE 1535 will request the SIP server use this period as the expiration time.
To configure the Registration expiration time, from “
main menu
”
→
“
settings
”
→
“
VoIP settings
”
1. Select
“
registration
”
→
“
expires
”.
2. Enter a number in seconds between 60 and 7200 and press OK
to confirm.
3.5.5 Miscellaneous
To modify various options such as Domain name, CTBW and voice mail, from “
main menu
”
→
“
settings
”
→
“
VoIP settings
”:
1. Select “Misc” and press OK.
2. Select the parameter to modify:
•
Domain name
: to modify the domain name server.
•
CTBW
: to modify total average bandwidth for a conference
range 60 and 250 kbps.