User manual

AT-620 User Manual

ATCOM TECHNOLOGY CO., LIMITED

9 Enable PRACK: Enable or disable SIP PRACK function, suggest use the

default config.

9 Long Contact: Set more parameters in contact field.

9 Click to Talk: Set click to Talk (need practical software support).

9 Ban Anonymous Call: Set to ban Anonymous Call.

9 Dial Without Register: Set call out by proxy without registration.

9 Enable Strict Proxy: Support the special SIP server-when phone receives

the packets sent from server， phone will use the source IP address, not the

address in via field.

9 Forward Type: Select call forward mode, the default is Off .

9 Off：Close down calling forward.

9 Busy：If the phone is busy, incoming calls will be forwarded to the appointed

phone.

9 No answer：If there is no answer, incoming calls will be forwarded to the

appointed phone.

9 Always：Incoming calls will be forwarded to the appoint phone directly.

9 The phone will prompt the incoming while doing forward.

9 Forward Phone Number: Appoint your forward phone number.

9 Server Type: Select the special type of server which is encrypted, or has

some unique requirements or call flows.

9 DTMF Mode: Select DTMF sending mode, there are three modes:

¾ DTMF_RELAY

¾ DTMF_RFC2833

¾ DTMF_SIP_INFO.

9 Different VoIP Service providers may provide different modes.

9 RFC Protocol Edition: Select SIP protocol version to adapt for the SIP server

which uses the same version as you select. For example, if the server is

CISCO5300, you need to change to RFC2543; else phone may not cancel

call normally. System uses RFC3261 as default.

9 Transport Protocol: Set transport protocols, TCP or UDP.

9 Subscribe Expire Time: Overtime of resending subscribe packet. Suggest

using the default config.

9 Conference Number: config certain Conference call number.

9 Signal Encode: enable signal encryption.

Rtp Encode: enable voice data encryption.

9 Enable Session Timer: enable rfc4028 to refresh the SIP sessions.

9 Answer With Single Codec: only answer the call with a certain Codec.

9 Auto TCP: enable TCP transmission protocol when the length of message

exceed 1300 byte.

9 Enable URI Convert: convert # into %23 when sending URI.

9 Enable Display name Quote: Set to make quotation mark to display name as

the phone sends out signal, in order to be compatible with server. Enable

GRUU: Set to support GRUU.

9 Enable Subscribe: Enable Subscribe: Overtime of resending subscribe