Specifications

UC864-E/G/WD/WDU AT Commands Reference Guide

80304ST10041a Rev. 7 - 2010-10-14

3.2.4. Command Response Time-Out

Every command issued to the Telit modules returns a result response if response

codes are enabled (default). The time needed to process the given command and

return the response varies, depending on the command type. Commands that do not

interact with the SIM or the network, and involve only internal set up settings or

readings, have an immediate response, depending on SIM configuration(e.g., number

of contacts stored in the phonebook, number of stored SMS), or on the network the

command may interact with.

In the table below are listed only the commands whose interaction with the SIM or

the network could lead to long response timings. When not otherwise specified,

timing is referred to set command.

For phonebook and SMS writing and reading related commands, timing is referred to

commands issued after phonebook sorting is completed.

For DTMF sending and dialing commands timing is referred to module registered on

network(“AT+CREG?” answer is

“+CREG: 0,1” or “+CREG: 0,5”).

Command Estimated maximum time to get

response(Seconds)

+COPS 125 (test command)

15 (SS operation) +CLCK

5 (FDN enabling/disabling)

15 (SS operation) +CPWD

5 (PIN modification)

+CLIP 15 (read command)

+CLIR 15 (read command)

+CCFC 15

+CCWA 15

+CHLD 30

+CPIN 30

+CPBS 5 (FDN enabling/disabling)

5 (single reading) +CPBR

15 (complete reading of a 500 records full

phonebook)

10 (string present in a 500 records full

phonebook)

+CPBF

5 (string not present)

+CPBW 5