diff --git a/features/cellular/framework/common/CellularUtil.h b/features/cellular/framework/common/CellularUtil.h
index 6865758ab4..28fa52be3c 100644
--- a/features/cellular/framework/common/CellularUtil.h
+++ b/features/cellular/framework/common/CellularUtil.h
@@ -31,32 +31,32 @@ namespace mbed_cellular_util {
 
 static const char hex_values[] = "0123456789ABCDEF";
 
-/** Converts the given ip address to proper IPv6 address if needed.
+/** Converts the given IP address to proper IPv6 address if needed.
  *  Conversion is done only if it's NOT IPv4 and separated with colons.
  *  AT command +CGPADDR can give IP address in format of a1.a2.a3.a4.a5.a6.a7.a8.a9.a10.a11.a12.a13.a14.a15.a16 for IPv6
- *  where ax are in decimal format. In this case function converts decimals to hex with separated with colons.
+ *  where ax are in decimal format. In this case, function converts decimals to hex with separated with colons.
  *
- *  @param ip       ip address which can be IPv4 or IPv6 in different formats from AT command +CGPADDR. Converted result uses same buffer.
+ *  @param ip       IP address that can be IPv4 or IPv6 in different formats from AT command +CGPADDR. Converted result uses same buffer.
  */
 void convert_ipv6(char* ip);
 
-/** Separates ip addresses from the given 'orig' string. 'orig' may contain zero, one or two ip addresses in various formats.
- *  See AT command +CGPIAF from 3GPP TS 27.007 for details. Does also needed conversions for ipv6 addresses.
+/** Separates IP addresses from the given 'orig' string. 'orig' may contain zero, one or two IP addresses in various formats.
+ *  See AT command +CGPIAF from 3GPP TS 27.007 for details. Does also needed conversions for IPv6 addresses.
  *
- *  @param orig          original string which contains zero, one or two ip addressees in various formats
- *  @param ip            preallocated buffer which might contain ip address after return
- *  @param ip_size       size of preallocated buffer ip
- *  @param ip2           preallocated buffer which might contain ip address after return
+ *  @param orig          original string that contains zero, one or two IP addressees in various formats
+ *  @param ip            preallocated buffer that might contain IP address after return
+ *  @param ip_size       size of preallocated buffer IP
+ *  @param ip2           preallocated buffer that might contain IP address after return
  *  @param ip2_size      size of preallocated buffer ip2
  *
  */
 void separate_ip_addresses(char* orig, char* ip, size_t ip_size, char* ip2, size_t ip2_size);
 
-/** Swaps the arrays if param ip does not contain ipv6 address but param ip2 does.
+/** Swaps the arrays if param IP does not contain IPv6 address but param ip2 does.
  *
- *  @param ip        ip address
+ *  @param ip        IP address
  *  @param ip_size   size of buffer ip
- *  @param ip2       ip address
+ *  @param ip2       IP address
  *  @param ip2_size  size of buffer ip2
  */
 void prefer_ipv6(char* ip, size_t ip_size, char* ip2, size_t ip2_size);
@@ -64,13 +64,13 @@ void prefer_ipv6(char* ip, size_t ip_size, char* ip2, size_t ip2_size);
 /** Converts the given int to two hex characters
  *
  *  @param num number to be converted to hex string
- *  @param buf preallocated buffer which will contain 2 char length hex value
+ *  @param buf preallocated buffer that will contain 2 char length hex value
  */
 void int_to_hex_str(uint8_t num, char* buf);
 
 /** Converts the given buffer 'str' to hex buffer 'buf. First 'len' char's are converted to two hex bytes.
  *
- *  @param str                   char buffer which is to be converted to hex
+ *  @param str                   char buffer that is to be converted to hex
  *  @param len                   how many chars from str are to be converted
  *  @param buf                   destination buffer for hex converted chars. Buffer should be double the size of str to fit hex-encoded string.
  *  @param omit_leading_zero     if true then possible leading zeroes are omitted
@@ -87,7 +87,7 @@ int hex_str_to_int(const char *hex_string, int hex_string_length);
 
 /** Converts the given hex string str to char string to buf
  *
- *  @param str hex string which is converted to char string to buf
+ *  @param str hex string that is converted to char string to buf
  *  @param len length of the param str/how many hex are converted
  *  @param buf preallocated buffer where result conversion is stored
  *  @return    length of the buf