Specifications

HE863 family AT commands reference guide

80377ST10083a Rev.4 – 2012-02-01

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 180 (test command)

+CLCK 180 (SS operation)

180 (FDN enabling/disabling)

+CPWD 180 (SS operation)

5 (PIN modification)

+CLIP 180 (read command)

+CLIR 180 (read command)

+CCFC 180

+CCWA 180

+CHLD 180

+CPIN 5

+CPBS 5 (FDN enabling/disabling)

+CPBR 5 (single reading)

30 (complete reading of a 500 records full

phonebook with the baudrate of serial line more

than 115200 bps )

+CPBF 30 (string present in a 500 records full phonebook

with the baudrate of serial line more than 115200

bps)

5 (string not present)

+CPBW 5

+CACM 5