Rtp Start Port; Proxy Registration; Registration Expiry - Talkswitch TS-350i User Manual

• Input the Local UDP Port using the dial pad and press the OK
softkey to save your entry.
Changing the Local UDP Port requires a reboot of the IP phone.

RTP Start Port

When a SIP call is established, Real-Time Transport Protocol (RTP) packets transport media (voice). The
default port used for RTP packets is 23000.
To change an RTP Start Port:
• Press the button, then select 2. SIP Configuration, then 7. RTP Start Port.
• Input the RTP Start Port using the dial pad and press the OK softkey
to save your entry.
Changing the RTP Start Port requires a reboot of the IP phone.

Proxy Registration

If Proxy Registration is set to Yes, the phone will register with the appropriate SIP or proxy server upon
initial power-up, during a reboot and at periodic intervals based on the timer defined by the server.
To enable Proxy Registration:
• Press the button, then select 2. SIP Configuration, then 8. Proxy Registration.
• To enable registration, press the Yes softkey. To disable SIP
registration, press the No softkey.

Registration Expiry

To ensure a regular connection, the phone periodically re-registers with the proxy or SIP server. Unless
defined by the host server during registration, the Register Expires timer determines the interval between
registration attempts and can be set from 0 to 86400 seconds. The default is 3600 seconds (1 hour).
To modify the Registration Expires timer:
• Press the button, then select 2. SIP Configuration, then 9. Register Expires.
• Input the registration expiration time using the dial pad and press
the OK softkey to save your entry.
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